{"id":2213,"date":"2022-04-27T06:33:49","date_gmt":"2022-04-27T06:33:49","guid":{"rendered":"https:\/\/www.splashlearn.com\/article-test-new\/?page_id=2213"},"modified":"2023-02-20T08:15:08","modified_gmt":"2023-02-20T08:15:08","slug":"2213-2","status":"publish","type":"post","link":"https:\/\/www.splashlearn.com\/math-vocabulary\/number-sense\/estimate","title":{"rendered":"Estimate &#8211; Definition with Examples"},"content":{"rendered":"\n<div class=\"wp-block-columns eplus-wrapper is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column eplus-wrapper is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\"><div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\tMath-Vocabulary\n<\/span><\/div>\n\n<div class=\"ub_table-of-contents\" data-showtext=\"show\" data-hidetext=\"hide\" data-scrolltype=\"auto\" id=\"ub_table-of-contents-f2b0490a-672d-481c-b733-59b84f4f3161\" data-initiallyhideonmobile=\"false\"\n                    data-initiallyshow=\"true\"><div class=\"ub_table-of-contents-extra-container\"><div class=\"ub_table-of-contents-container ub_table-of-contents-1-column \"><ul><li><a href=https:\/\/www.splashlearn.com\/math-vocabulary\/number-sense\/estimate#0-what-is-estimation>What Is Estimation?<\/a><\/li><li><a href=https:\/\/www.splashlearn.com\/math-vocabulary\/number-sense\/estimate#1-definition-of-estimation>Definition of Estimation<\/a><\/li><li><a href=https:\/\/www.splashlearn.com\/math-vocabulary\/number-sense\/estimate#10-estimation-jar-how-does-it-work>Estimation Jar: How Does It Work?<\/a><\/li><li><a href=https:\/\/www.splashlearn.com\/math-vocabulary\/number-sense\/estimate#12-solved-examples>Solved Examples<\/a><\/li><li><a href=https:\/\/www.splashlearn.com\/math-vocabulary\/number-sense\/estimate#13-practice-problems>Practice Problems<\/a><\/li><li><a href=https:\/\/www.splashlearn.com\/math-vocabulary\/number-sense\/estimate#14-frequently-asked-questions>Frequently Asked Questions<\/a><\/li><\/ul><\/div><\/div><\/div>\n\n\n<h2 class=\"eplus-wrapper wp-block-heading\" id=\"0-what-is-estimation\">What Is Estimation?<\/h2>\n\n\n\n<p class=\" eplus-wrapper\">Estimating is not something new to us. We do it&nbsp;all the time. Look at the image given below. We can see that Eddie, in the image below, is not exactly 2 feet tall but he is close to it. So, we can estimate his height and say that he is about 2 feet tall.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full eplus-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"354\" src=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-1.png\" alt=\"Eddie standing next to a height chart, approximately 2 ft tall\" class=\"wp-image-23470\" title=\"Eddie standing next to a height chart, approximately 2 ft tall\" srcset=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-1.png 620w, https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-1-300x171.png 300w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><\/figure>\n\n\n\n<p class=\" eplus-wrapper\">A few more such examples:<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Estimating time: Sara walks to school from home in about 10 minutes.&nbsp;<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Estimating quantity: About a 1000 people will attend the concert.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Estimating distance: The distance between New York to San Francisco is approximately 2900 miles.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">So, the question is, what is an estimate?&nbsp;<\/p>\n\n\n\n<p class=\" eplus-wrapper\">An <strong>estimate<\/strong> is an approximate calculation or rounding of the number to the nearest place value for the sake of convenience. There\u2019s no single way to define estimation. The closest meaning of an estimation is a guess or an assumption about a value that isn\u2019t too far off. What is an estimate in Math? Definition for estimate in math is an approximate value close enough to the correct value. A lot of guesses are made to make math easier and clearer.&nbsp;<\/p>\n\n\n\n<div id=\"recommended-games-container-id\" class=\"recommended-games-container\"><h4 class=\"recommended-games-container-headline\">Recommended Games<\/h4><div class=\"recommended-games-container-slides\"><div class=\"game-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-games\/10-and-100-more-than-the-same-number\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"games_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t\t<div class=\"game-card-container-inner-block\">\r\n\t\t\t<img decoding=\"async\" class=\"game-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/curriculum_uploads\/images\/playables\/add_sub_pv_1_10_100_more_same_num_pt.png\" alt=\"10 and 100 More than the Same Number Game\">\r\n\t\t<\/div>\r\n\t\r\n\t\t<div class=\"game-card-container-inner\">\r\n\t\t\t<div class=\"game-card-container-inner-name\">10 and 100 More than the Same Number Game<\/div>\r\n\t\t\t<span class=\"game-card-container-inner-cta\">Play<\/span>\r\n\t\t<\/div>\r\n\t<\/a>\r\n<\/div><div class=\"game-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-games\/add-1-digit-numbers\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"games_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t\t<div class=\"game-card-container-inner-block\">\r\n\t\t\t<img decoding=\"async\" class=\"game-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/curriculum_uploads\/images\/playables\/add_sub_facts_add_make_10_pt.png\" alt=\"Add 1-Digit Numbers Game\">\r\n\t\t<\/div>\r\n\t\r\n\t\t<div class=\"game-card-container-inner\">\r\n\t\t\t<div class=\"game-card-container-inner-name\">Add 1-Digit Numbers Game<\/div>\r\n\t\t\t<span class=\"game-card-container-inner-cta\">Play<\/span>\r\n\t\t<\/div>\r\n\t<\/a>\r\n<\/div><div class=\"game-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-games\/add-10-to-a-3-digit-number\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"games_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t\t<div class=\"game-card-container-inner-block\">\r\n\t\t\t<img decoding=\"async\" class=\"game-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/curriculum_uploads\/images\/playables\/add_sub_pv_add_10_number_pt.png\" alt=\"Add 10 to a 3-Digit Number Game\">\r\n\t\t<\/div>\r\n\t\r\n\t\t<div class=\"game-card-container-inner\">\r\n\t\t\t<div class=\"game-card-container-inner-name\">Add 10 to a 3-Digit Number Game<\/div>\r\n\t\t\t<span class=\"game-card-container-inner-cta\">Play<\/span>\r\n\t\t<\/div>\r\n\t<\/a>\r\n<\/div><div class=\"game-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-games\/add-100-to-a-3-digit-number\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"games_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t\t<div class=\"game-card-container-inner-block\">\r\n\t\t\t<img decoding=\"async\" class=\"game-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/curriculum_uploads\/images\/playables\/add_sub_pv_add_100_horizontal_pt.png\" alt=\"Add 100 to a 3-Digit Number Game\">\r\n\t\t<\/div>\r\n\t\r\n\t\t<div class=\"game-card-container-inner\">\r\n\t\t\t<div class=\"game-card-container-inner-name\">Add 100 to a 3-Digit Number Game<\/div>\r\n\t\t\t<span class=\"game-card-container-inner-cta\">Play<\/span>\r\n\t\t<\/div>\r\n\t<\/a>\r\n<\/div><div class=\"game-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-games\/add-2-digit-and-1-digit-numbers\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"games_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t\t<div class=\"game-card-container-inner-block\">\r\n\t\t\t<img decoding=\"async\" class=\"game-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/curriculum_uploads\/images\/playables\/add_sub_pv_add_2d_1d_match_pt.png\" alt=\"Add 2-Digit and 1-Digit Numbers Game\">\r\n\t\t<\/div>\r\n\t\r\n\t\t<div class=\"game-card-container-inner\">\r\n\t\t\t<div class=\"game-card-container-inner-name\">Add 2-Digit and 1-Digit Numbers Game<\/div>\r\n\t\t\t<span class=\"game-card-container-inner-cta\">Play<\/span>\r\n\t\t<\/div>\r\n\t<\/a>\r\n<\/div><div class=\"game-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-games\/add-2-digit-numbers-by-regrouping\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"games_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t\t<div class=\"game-card-container-inner-block\">\r\n\t\t\t<img decoding=\"async\" class=\"game-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/curriculum_uploads\/images\/playables\/add_sub_pv_add_regrp_2d_2d_vertical_pt.png\" alt=\"Add 2-Digit Numbers By Regrouping Game\">\r\n\t\t<\/div>\r\n\t\r\n\t\t<div class=\"game-card-container-inner\">\r\n\t\t\t<div class=\"game-card-container-inner-name\">Add 2-Digit Numbers By Regrouping Game<\/div>\r\n\t\t\t<span class=\"game-card-container-inner-cta\">Play<\/span>\r\n\t\t<\/div>\r\n\t<\/a>\r\n<\/div><div class=\"game-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-games\/add-3-numbers\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"games_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t\t<div class=\"game-card-container-inner-block\">\r\n\t\t\t<img decoding=\"async\" class=\"game-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/curriculum_uploads\/images\/playables\/add_sub_facts_add_3_no_pt.png\" alt=\"Add 3 Numbers Game\">\r\n\t\t<\/div>\r\n\t\r\n\t\t<div class=\"game-card-container-inner\">\r\n\t\t\t<div class=\"game-card-container-inner-name\">Add 3 Numbers Game<\/div>\r\n\t\t\t<span class=\"game-card-container-inner-cta\">Play<\/span>\r\n\t\t<\/div>\r\n\t<\/a>\r\n<\/div><div class=\"game-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-games\/add-3-numbers-in-any-order\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"games_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t\t<div class=\"game-card-container-inner-block\">\r\n\t\t\t<img decoding=\"async\" class=\"game-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/curriculum_uploads\/images\/playables\/add_sub_facts_shifty_bridges_4_gm.png\" alt=\"Add 3 Numbers in Any Order Game\">\r\n\t\t<\/div>\r\n\t\r\n\t\t<div class=\"game-card-container-inner\">\r\n\t\t\t<div class=\"game-card-container-inner-name\">Add 3 Numbers in Any Order Game<\/div>\r\n\t\t\t<span class=\"game-card-container-inner-cta\">Play<\/span>\r\n\t\t<\/div>\r\n\t<\/a>\r\n<\/div><div class=\"game-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-games\/add-3-numbers-using-groups-of-objects\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"games_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t\t<div class=\"game-card-container-inner-block\">\r\n\t\t\t<img decoding=\"async\" class=\"game-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/curriculum_uploads\/images\/playables\/add_sub_facts_add_using_model_pt.png\" alt=\"Add 3 Numbers Using Groups of Objects Game\">\r\n\t\t<\/div>\r\n\t\r\n\t\t<div class=\"game-card-container-inner\">\r\n\t\t\t<div class=\"game-card-container-inner-name\">Add 3 Numbers Using Groups of Objects Game<\/div>\r\n\t\t\t<span class=\"game-card-container-inner-cta\">Play<\/span>\r\n\t\t<\/div>\r\n\t<\/a>\r\n<\/div><div class=\"game-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-games\/add-3-numbers-using-model\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"games_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t\t<div class=\"game-card-container-inner-block\">\r\n\t\t\t<img decoding=\"async\" class=\"game-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/curriculum_uploads\/images\/playables\/add_sub_facts_add_3_no_using_models_pt.png\" alt=\"Add 3 Numbers using Model Game\">\r\n\t\t<\/div>\r\n\t\r\n\t\t<div class=\"game-card-container-inner\">\r\n\t\t\t<div class=\"game-card-container-inner-name\">Add 3 Numbers using Model Game<\/div>\r\n\t\t\t<span class=\"game-card-container-inner-cta\">Play<\/span>\r\n\t\t<\/div>\r\n\t<\/a>\r\n<\/div><\/div><p class=\"recommended-games-container-desc\"><a href=\"https:\/\/www.splashlearn.com\/games\">More Games<\/a><\/p><button class=\"scroll-right-arrow\"><\/button><\/div><script type=\"text\/javascript\">\n        document.addEventListener(\"DOMContentLoaded\", function() {\n            const container = document.querySelector(\"#recommended-games-container-id\");\n            const slidesContainer = container.querySelector(\".recommended-games-container-slides\");\n            const cards = slidesContainer.querySelectorAll(\".game-card-container-outer\");\n            const scrollRightArrow = container.querySelector(\".scroll-right-arrow\");\n\n            function adjustContainerStyles() {\n                const numCards = cards.length;\n\n                if (numCards === 1) {\n                    container.style.maxWidth = \"30%\";\n                    container.style.textAlign = \"center\";\n                } else if (numCards === 2) {\n                    container.style.maxWidth = \"50%\";\n                    container.style.textAlign = \"center\";\n                } else if (numCards === 3) {\n                    container.style.maxWidth = \"75%\";\n                    container.style.textAlign = \"center\";\n                } else {\n                    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     checkScrollPosition();\n            slidesContainer.addEventListener(\"scroll\", checkScrollPosition);\n        });\n    <\/script><h2 class=\"eplus-wrapper wp-block-heading\" id=\"1-definition-of-estimation\">Definition of Estimation<\/h2>\n\n\n\n<p class=\" eplus-wrapper\"><strong>Estimation<\/strong> is a rough calculation of the actual value, number, or quantity for making calculations easier.&nbsp;<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Example: When taking a cab or waiting for a bill at a restaurant, we tend to <strong>estimate<\/strong> the amount to be paid.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">In short, it is an approximate answer. And this figure is often used to check the accuracy or correctness of the final answer. Estimation helps when a certain margin of error is allowed in a calculation. It gives an answer without using a calculator or written calculations. The whole point of the exercise is for you to devise a plausible approximation.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Most of the time, estimation in math is done by rounding off the numbers to their closest whole value to get a quick and simple rough answer. It saves time and effort.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">For instance,<strong> <\/strong>kids use estimation many times a day without realizing it. They tend to figure out how long they play and how long they have for recess.&nbsp;<\/p>\n\n\n\n<div id=\"recommended-worksheets-container-id\" class=\"recommended-games-container\"><h4 class=\"recommended-games-container-headline\">Recommended Worksheets<\/h4><div class=\"recommended-games-container-slides\"><div class=\"worksheet-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-worksheets\/10-and-100-more-than-a-3-digit-number\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"worksheets_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t    <div class=\"worksheet-card-container-inner-block\">\r\n\t        <img decoding=\"async\" class=\"worksheet-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/cms_assets\/s\/math-worksheets\/10-and-100-more-than-a-3-digit-number.jpeg\" alt=\"10 and 100 More than a 3-digit Number\">\r\n\t    <\/div>\r\n\t\t<div class=\"worksheet-card-container-inner\" >\r\n\t\t<\/div><\/a>\r\n<\/div><div class=\"worksheet-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-worksheets\/100-more-and-100-less-than-a-3-digit-number\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"worksheets_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t    <div class=\"worksheet-card-container-inner-block\">\r\n\t        <img decoding=\"async\" class=\"worksheet-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/cms_assets\/s\/math-worksheets\/100-more-and-100-less-than-a-3-digit-number.jpeg\" alt=\"100 More and 100 Less than a 3-digit Number\">\r\n\t    <\/div>\r\n\t\t<div class=\"worksheet-card-container-inner\" >\r\n\t\t<\/div><\/a>\r\n<\/div><div class=\"worksheet-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-worksheets\/100-more-than-a-3-digit-number\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"worksheets_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t    <div class=\"worksheet-card-container-inner-block\">\r\n\t        <img decoding=\"async\" class=\"worksheet-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/cms_assets\/s\/math-worksheets\/100-more-than-a-3-digit-number.jpeg\" alt=\"100 More than a 3-digit Number\">\r\n\t    <\/div>\r\n\t\t<div class=\"worksheet-card-container-inner\" >\r\n\t\t<\/div><\/a>\r\n<\/div><div class=\"worksheet-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-worksheets\/add-subtract-ones-2-digit-numbers\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"worksheets_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t    <div class=\"worksheet-card-container-inner-block\">\r\n\t        <img decoding=\"async\" class=\"worksheet-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/cms_assets\/s\/math-worksheets\/add-subtract-ones-2-digit-numbers.jpeg\" alt=\"Add & Subtract Ones & 2-Digit Numbers Worksheet\">\r\n\t    <\/div>\r\n\t\t<div class=\"worksheet-card-container-inner\" >\r\n\t\t<\/div><\/a>\r\n<\/div><div class=\"worksheet-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-worksheets\/add-1-digit-and-3-digit-numbers-and-find-the-sum\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"worksheets_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t    <div class=\"worksheet-card-container-inner-block\">\r\n\t        <img decoding=\"async\" class=\"worksheet-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/cms_assets\/s\/math-worksheets\/add-1-digit-and-3-digit-numbers-and-find-the-sum.jpeg\" alt=\"Add 1 Digit and 3 Digit Numbers and Find the Sum\">\r\n\t    <\/div>\r\n\t\t<div class=\"worksheet-card-container-inner\" >\r\n\t\t<\/div><\/a>\r\n<\/div><div class=\"worksheet-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-worksheets\/add-1-digit-and-3-digit-numbers-and-match-the-sum\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"worksheets_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t    <div class=\"worksheet-card-container-inner-block\">\r\n\t        <img decoding=\"async\" class=\"worksheet-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/cms_assets\/s\/math-worksheets\/add-1-digit-and-3-digit-numbers-and-match-the-sum.jpeg\" alt=\"Add 1 Digit and 3 Digit Numbers and Match the Sum\">\r\n\t    <\/div>\r\n\t\t<div class=\"worksheet-card-container-inner\" >\r\n\t\t<\/div><\/a>\r\n<\/div><div class=\"worksheet-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-worksheets\/add-1-digit-and-3-digit-numbers-using-addition-tables\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"worksheets_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t    <div class=\"worksheet-card-container-inner-block\">\r\n\t        <img decoding=\"async\" class=\"worksheet-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/cms_assets\/s\/math-worksheets\/add-1-digit-and-3-digit-numbers-using-addition-tables.jpeg\" alt=\"Add 1 Digit and 3 Digit Numbers Using Addition Tables\">\r\n\t    <\/div>\r\n\t\t<div class=\"worksheet-card-container-inner\" >\r\n\t\t<\/div><\/a>\r\n<\/div><div class=\"worksheet-card-container-outer\">\r\n\t<a href=\"https:\/\/www.splashlearn.com\/s\/math-worksheets\/add-1-digit-and-3-digit-numbers-using-addition-wheel\" data-vars-ga-category=\"splashlearn_vocab\" data-vars-ga-action=\"worksheets_recommendations\" data-vars-ga-label=\"post_widget\">\r\n\t    <div class=\"worksheet-card-container-inner-block\">\r\n\t        <img decoding=\"async\" class=\"worksheet-card-container-inner-img\" src=\"https:\/\/cdn.splashmath.com\/cms_assets\/s\/math-worksheets\/add-1-digit-and-3-digit-numbers-using-addition-wheel.jpeg\" 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     checkScrollPosition();\n            slidesContainer.addEventListener(\"scroll\", checkScrollPosition);\n        });\n    <\/script><h2 class=\"eplus-wrapper wp-block-heading\" id=\"2-examples-of-estimation\">Examples of Estimation<\/h2>\n\n\n\n<ul class=\"eplus-wrapper wp-block-list\">\n<li class=\" eplus-wrapper\">Lily counted the number of flowers in the garden by counting the first row and then multiplying it by the number of rows. She estimated that there were 300 flowers in the garden.&nbsp;<\/li>\n<\/ul>\n\n\n\n<ul class=\"eplus-wrapper wp-block-list\">\n<li class=\" eplus-wrapper\">Anna made exactly $\\$9.7$ from her lemonade stand. When asked by her parents, she estimated that she made about $\\$10$ from the stand.&nbsp;<\/li>\n<\/ul>\n\n\n\n<ul class=\"eplus-wrapper wp-block-list\">\n<li class=\" eplus-wrapper\">The total population in the world as of April 2022 is around 7.9 billion. This is an estimation. This is not the exact value.&nbsp;<\/li>\n<\/ul>\n\n\n\n<h2 class=\"eplus-wrapper wp-block-heading\" id=\"3-non-examples-of-estimation\">Non-examples of Estimation<\/h2>\n\n\n\n<ul class=\"eplus-wrapper wp-block-list\">\n<li class=\" eplus-wrapper\">There are eight planets in the solar system.&nbsp;<\/li>\n\n\n\n<li class=\" eplus-wrapper\">There are 50 states in the United States.&nbsp;<\/li>\n<\/ul>\n\n\n\n<p class=\" eplus-wrapper\">There is no estimation in both of these examples. They are facts.&nbsp;<\/p>\n\n\n\n<h2 class=\"eplus-wrapper wp-block-heading\" id=\"4-estimate-symbol-math\">Estimate Symbol Math<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full eplus-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"243\" height=\"133\" src=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-2.png\" alt=\"Equal sign and symbol of estimation\" class=\"wp-image-23471\" title=\"Equal sign and symbol of estimation\"\/><\/figure>\n\n\n\n<p class=\" eplus-wrapper\">We use the first symbol \u201c$=$\u201d sign when things are exactly the same but if we estimate then we make an approximate guess hence we use the second symbol \u201c$\\approx$ \u201c which means \u2018approximately equal to\u2019.<\/p>\n\n\n\n<h2 class=\"eplus-wrapper wp-block-heading\" id=\"5-how-to-estimate-in-math\">How to Estimate in Math?<\/h2>\n\n\n\n<p class=\" eplus-wrapper\">An important method of <strong>estimating<\/strong> <strong>numbers<\/strong> in math is to skillfully round off the numbers. <strong>What is rounding of numbers? <\/strong>Rounding a number refers to changing or altering the number to a less exact but more convenient number, making it simpler for calculations. The <strong>estimated<\/strong> answer is easier to use. Rounding off comes in handy while finding solutions to <strong>estimation questions.<\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\">Let us consider an <strong>example of estimation<\/strong>: The headmistress of a school <strong>estimates<\/strong> that about 24 students are standing in rows in the playground. She does this by counting the number of students in a single row and then multiplying that figure by the total number of rows. The actual number may be more than or less than 24.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full eplus-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"430\" src=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-3.png\" alt=\"Estimation of number of students on a playground\" class=\"wp-image-23473\" title=\"Estimation of number of students on a playground\" srcset=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-3.png 620w, https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-3-300x208.png 300w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><\/figure>\n\n\n\n<h2 class=\"eplus-wrapper wp-block-heading\" id=\"6-the-general-rules-in-estimating\">The General Rules in Estimating<\/h2>\n\n\n\n<p class=\" eplus-wrapper\">First, we must know the digit in the place we want to round the number off to. Next, we check the number to its right. Example: To round off to the nearest ten, we check the ones place.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">1) If the number is less than 5, we round it down.&nbsp;<\/p>\n\n\n\n<p class=\" eplus-wrapper\">For example, 723 rounded off to the nearest ten is 720.&nbsp;<\/p>\n\n\n\n<p class=\" eplus-wrapper\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We drop 3 since $3 \\lt 5$. We do not change the tens digit.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">2) If the number is more than or equal to 5, we round it up.&nbsp;<\/p>\n\n\n\n<p class=\" eplus-wrapper\">For example, 787 rounded off to the nearest ten is 780.&nbsp;<\/p>\n\n\n\n<p class=\" eplus-wrapper\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We round the tens digit 8 up to 9 since $7 \\gt 5$.<\/p>\n\n\n\n<h2 class=\"eplus-wrapper wp-block-heading\" id=\"7-how-to-estimate-different-place-values\">How to Estimate Different Place Values?<\/h2>\n\n\n\n<p class=\" eplus-wrapper\">The simplest way to estimate is by rounding off numbers to the nearest whole number.&nbsp; Rounding off helps achieve an approximate answer faster. For example, Laura pays a monthly installment of $\\$3950$ for her new house. We can round off this number to $\\$4000$ to simplify.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">You can round off a number to the nearest 10, 100, or 1000 and so on.&nbsp;<\/p>\n\n\n\n<p class=\" eplus-wrapper\">When working on problems involving large numbers, we may have to <strong>estimate<\/strong> our answers to the closest million or billion. Let us understand this better with the <strong>estimated digit examples.&nbsp;<\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\">Example: Let\u2019s round off the number 381.93 to three different place values.<\/p>\n\n\n\n<ol class=\"eplus-wrapper wp-block-list\">\n<li class=\" eplus-wrapper\">Round it to a whole number:<\/li>\n<\/ol>\n\n\n\n<p class=\" eplus-wrapper\">It means we wish to lose the decimal part. The tenth place is 9, which is greater than 5. So, we round it up. Let us increase the digit in one&#8217;s place by 1. We will get 382.<\/p>\n\n\n\n<ol start=\"2\" class=\"eplus-wrapper wp-block-list\">\n<li class=\" eplus-wrapper\">Round to the nearest ten:&nbsp;<\/li>\n<\/ol>\n\n\n\n<p class=\" eplus-wrapper\">To round a number to the nearest ten, we check the ones place. Here, it is 1. We round it down, since $1 \\lt 5$. We will simply drop 1. The rounded number is 380.<\/p>\n\n\n\n<ol start=\"3\" class=\"eplus-wrapper wp-block-list\">\n<li class=\" eplus-wrapper\">Round it to the nearest hundred:&nbsp;<\/li>\n<\/ol>\n\n\n\n<p class=\" eplus-wrapper\">The tens place is 8. We round it up and increase the digit in the hundreds place by 1. The rounded number is 400.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">4. Round it to the nearest tenth:<\/p>\n\n\n\n<p class=\" eplus-wrapper\">The hundredths place is 3 and $3 \\lt 5$. So, we drop 3 and round the decimal to 381.9.<\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong>General Rule of Estimation Summary:<\/strong><\/p>\n\n\n\n<ul class=\"eplus-wrapper wp-block-list\">\n<li class=\" eplus-wrapper\">As soon as you pick the number you want to estimate\/round, first find the digit at the place you want to round the number to.<\/li>\n\n\n\n<li class=\" eplus-wrapper\">Next look at the digit right to that place to see which way you will round.&nbsp;<\/li>\n\n\n\n<li class=\" eplus-wrapper\">If the digit to the right is four or less (as in 4, 3, 2, 1, 0), your number remains the same.&nbsp;<\/li>\n\n\n\n<li class=\" eplus-wrapper\">If the digit to the right is five or higher (as in 5, 6, 7, 8, or nine), your number increases by one.&nbsp;<\/li>\n\n\n\n<li class=\" eplus-wrapper\">In the end, all the extra digits that weren\u2019t rounded off, should be removed.&nbsp;<\/li>\n<\/ul>\n\n\n\n<p class=\" eplus-wrapper\">A quick way to remember this rule is:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full eplus-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"449\" height=\"351\" src=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-4.png\" alt=\"Fun way to remember estimation rules\" class=\"wp-image-23474\" title=\"Fun way to remember estimation rules\" srcset=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-4.png 449w, https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-4-300x235.png 300w\" sizes=\"auto, (max-width: 449px) 100vw, 449px\" \/><\/figure>\n\n\n\n<h2 class=\"eplus-wrapper wp-block-heading\" id=\"8-estimation-in-real-life\">Estimation in Real Life<\/h2>\n\n\n\n<p class=\" eplus-wrapper\"><strong>Estimating<\/strong> is a vital part of our daily lives. We are always <strong>estimating<\/strong> things, sometimes without even being aware of it.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Example 1:<\/p>\n\n\n\n<p class=\" eplus-wrapper\">When we are purchasing a few things at the supermarket, we try to <strong>estimate<\/strong> the total cost in our head.&nbsp;The <strong>estimated<\/strong> amount is usually a round number in tens, hundreds, or even thousands, depending on what items we wish to purchase.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Suppose you buy three items whose prices are $\\$2.35$,&nbsp; $\\$13.85$ and $\\$4.25$. To estimate the total cost, you can simply round the price to the nearest whole number.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full eplus-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"359\" src=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-5.png\" alt=\"Estimate addition\" class=\"wp-image-23475\" title=\"Estimate addition\" srcset=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-5.png 620w, https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-5-300x174.png 300w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><\/figure>\n\n\n\n<p class=\" eplus-wrapper\">Example 2: Dividing $\\$798$ bill among 8 people.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Rounding off 798 to the nearest ten, we get 800.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">$800 \\div 8 = 100$<\/p>\n\n\n\n<p class=\" eplus-wrapper\">So, the estimate of the share of each person is $\\$100$.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Example 3: Estimate the product of 62 and 29. We round off to the nearest ten. We change 62 to 60, and 29 to 30.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full eplus-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"317\" src=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-6.png\" alt=\"Estimate product\" class=\"wp-image-23476\" title=\"Estimate product\" srcset=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-6.png 620w, https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-6-300x153.png 300w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><\/figure>\n\n\n\n<h2 class=\"eplus-wrapper wp-block-heading\" id=\"9-estimate-using-compatible-numbers\">Estimate Using Compatible Numbers<\/h2>\n\n\n\n<p class=\" eplus-wrapper\">When we use estimation to approximate a calculation, we can replace actual numbers with compatible numbers (friendly numbers). Compatible numbers are numbers that are easy to add, subtract, multiply, and divide.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Example: Multiply 14 and 68 using compatible numbers.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full eplus-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"304\" src=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-7.png\" alt=\"Estimate using compatible numbers\" class=\"wp-image-23477\" title=\"Estimate using compatible numbers\" srcset=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-7.png 620w, https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-7-300x147.png 300w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><\/figure>\n\n\n\n<h2 class=\"eplus-wrapper wp-block-heading\" id=\"10-estimation-jar-how-does-it-work\">Estimation Jar: How Does It Work?<\/h2>\n\n\n\n<p class=\" eplus-wrapper\">An estimation jar is a delightful and engaging teaching aid. It is widely used to introduce the concept of estimation to kids<strong>.&nbsp;<\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\">Children love making predictions. The jar can be filled with fun items children enjoy, like rubber ducks, marshmallows, Cheerios, beads, or jelly beans. Kids are usually asked to estimate the number of candies in the jar.&nbsp;<\/p>\n\n\n\n<p class=\" eplus-wrapper\">An approximate method to calculate the number of sweets in a jar is to multiply the approximate number along the base by the approximate number of sweets along the height of the jar.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">We can say that there are approximately $7 \\times 6 = 42$ candies in the given jar.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full eplus-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"326\" src=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-8.png\" alt=\"Trick to estimate number of candies in a jar\" class=\"wp-image-23478\" title=\"Trick to estimate number of candies in a jar\" srcset=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-8.png 620w, https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/estimate-8-300x158.png 300w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><\/figure>\n\n\n\n<h2 class=\"eplus-wrapper wp-block-heading\" id=\"11-conclusion\">Conclusion<\/h2>\n\n\n\n<p class=\" eplus-wrapper\">You have learned that there is much more to <strong>estimation<\/strong> than guesswork. It is a concept that helps you gauge, analyze and come up with solutions. It encourages you to think out of the box.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">It also improves your attention to detail and makes you a better negotiator. Now that you have all the skills required to be an expert at <strong>estimating<\/strong>, I <strong>estimate<\/strong> that you are about to have a good time with it.<\/p>\n\n\n\n<h2 class=\"eplus-wrapper wp-block-heading\" id=\"12-solved-examples\">Solved Examples<\/h2>\n\n\n\n<p class=\" eplus-wrapper\"><strong>1. Round 412.74 to the nearest tenth.<\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong><em>Solution:<\/em><\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\">Hundredths digit $= 4 \\lt 5$<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Thus, we drop 4.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Rounding 412.74 to the nearest tenth, we get 412.7.<\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong>2. Round off the number 525.71 to the nearest whole number.<\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong>Solution:<\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\">The tenth place of the number 525.71 is 7. So, we round it up. Let us increase the digit in ones place by 1. We will get 526.<\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong>3. A parking garage has 4 levels. If each level can house 105 cars, estimate the number of cars parked there.<\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong>Solution:<\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\">Let us multiply the number of levels with the rounded number of cars.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">$4 \\times 100 = 400$<\/p>\n\n\n\n<p class=\" eplus-wrapper\">So, the <strong>estimated<\/strong> number of cars parked in the garage is 400.<\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong>4. Aaliyah has 47 baseball cards, and Harry has 62. Estimate how many cards they have altogether.<\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong>Solution:<\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\">Let us round off the number of baseball cards Aaliyah and Harry have. Let\u2019s round the numbers to the nearest ten. 47 is rounded to 50, and 62 is rounded to 60.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Therefore the total number of cards they have altogether is $50 + 60 = 110$ baseball cards (approximately)<\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong>5. Estimate the difference of 14.21 and 5.67.<\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong>Solution:<\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\">Let us round off the numbers.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">14.21, rounded to the nearest whole number, is 14.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">5.67 is rounded to 6.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">By subtracting we get $14 \u2013 6 = 8$<\/p>\n\n\n\n<p class=\" eplus-wrapper\">The <strong>estimated <\/strong>difference is 8.<\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong>6. Aaron scored 87.91% in his seventh grade Science finals. Round off his percentage to the nearest whole number.&nbsp;<\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong>Solution<\/strong>: Aaron scored approximately 88% in seventh grade Science finals. This estimation was made after rounding off the number 87.91% to the nearest whole number. Since the number to the right after the decimal is 9 which is greater than 5, the number to the left(7) increases by one digit.&nbsp;<\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong>7. Gina collected 56 coins and Carol collected 86 coins. Choose a better estimate to find the number of coins they own together.&nbsp;<\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong>Solution<\/strong>: Gina collected 56 coins. We can round off 56 to 60 coins and we can round off 86 to 90 coins. After adding 60 and 90, we get 150. The estimated answer is 150.&nbsp;<\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong>8. Sam wants to buy 5 books, each costs <\/strong>$\\$2.95$<strong>. The bundle of the 5 books together costs <\/strong>$\\$20$<strong>. Is that correct?<\/strong><\/p>\n\n\n\n<p class=\" eplus-wrapper\"><strong>Solution<\/strong>:No, that doesn\u2019t seem correct.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Each book costs approximately $\\$3$. Five such books should cost $5 \\times \\$3 = \\$15$.&nbsp;<\/p>\n\n\n\n<p class=\" eplus-wrapper\">$\\$20$ seems too much.<\/p>\n\n\n\n<h2 class=\"eplus-wrapper wp-block-heading\" id=\"13-practice-problems\">Practice Problems<\/h2>\n\n\n\n<p class=\" eplus-wrapper\"><div class=\"spq_wrapper\"><h2 style=\"display:none;\">Estimate - Definition with Examples<\/h2><p style=\"display:none;\">Attend this quiz & Test your knowledge.<\/p><div class=\"spq_question_wrapper\" data-answer=\"2\"><span class=\"spq_question_header\"><span class=\"sqp_question_number\">1<\/span><h3 class=\"sqp_question_text\">Estimate the number of birds in the image given below.<\/h3><\/span><div class=\"spq_question_image\"><img decoding=\"async\" src=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/pp1-2.png\"><\/div><div class=\"spq_answer_block\" data-value=\"0\">10 birds<\/div><div class=\"spq_answer_block\" data-value=\"1\">15 birds<\/div><div class=\"spq_answer_block\" data-value=\"2\">21 birds<\/div><div class=\"spq_answer_block\" data-value=\"3\">30 birds<\/div><div class=\"sqp_question_hint\"><div class=\"sqp_question_hint__header\"><span class=\"spq_correct\">Correct<\/span><span class=\"spq_incorrect\">Incorrect<\/span><\/div><div class=\"sqp_question_hint__content\"><span>Correct answer is: 21 birds<br\/>We can see 3 rows of about 7 birds in each. So we multiply 7 by 3 to get the estimated number of birds as 21.<\/span><\/div><\/div><\/div><div class=\"spq_question_wrapper\" data-answer=\"3\"><span class=\"spq_question_header\"><span class=\"sqp_question_number\">2<\/span><h3 class=\"sqp_question_text\">Round off the number 4392 to the nearest hundred.<\/h3><\/span><div class=\"spq_answer_block\" data-value=\"0\">4100<\/div><div class=\"spq_answer_block\" data-value=\"1\">4200<\/div><div class=\"spq_answer_block\" data-value=\"2\">4300<\/div><div class=\"spq_answer_block\" data-value=\"3\">4400<\/div><div class=\"sqp_question_hint\"><div class=\"sqp_question_hint__header\"><span class=\"spq_correct\">Correct<\/span><span class=\"spq_incorrect\">Incorrect<\/span><\/div><div class=\"sqp_question_hint__content\"><span>Correct answer is: 4400<br\/>The tens place is 9, so it is a roundup. We will increase the digit in the hundreds place by 1. The rounded number is 4400.<\/span><\/div><\/div><\/div><div class=\"spq_question_wrapper\" data-answer=\"1\"><span class=\"spq_question_header\"><span class=\"sqp_question_number\">3<\/span><h3 class=\"sqp_question_text\">Lucy had 623 stickers. She gave 97 to her brother, Roger. Estimate how many stickers she has left.<\/h3><\/span><div class=\"spq_answer_block\" data-value=\"0\">600 stickers<\/div><div class=\"spq_answer_block\" data-value=\"1\">500 stickers<\/div><div class=\"spq_answer_block\" data-value=\"2\">400 stickers<\/div><div class=\"spq_answer_block\" data-value=\"3\">300 stickers<\/div><div class=\"sqp_question_hint\"><div class=\"sqp_question_hint__header\"><span class=\"spq_correct\">Correct<\/span><span class=\"spq_incorrect\">Incorrect<\/span><\/div><div class=\"sqp_question_hint__content\"><span>Correct answer is: 500 stickers<br\/>Round the number of stickers to the nearest hundred. 623 rounded to the nearest hundred is 600. The number of stickers she gave to her brother is 97. We can round it to the nearest ten and get 100.<br>\r\nLet us subtract:<br>\r\n$600$ $\u2013$ $100 = 500$<br>\r\nSo, Lucy has approximately 500 stickers left.<\/span><\/div><\/div><\/div><div class=\"spq_question_wrapper\" data-answer=\"2\"><span class=\"spq_question_header\"><span class=\"sqp_question_number\">4<\/span><h3 class=\"sqp_question_text\">Estimate the sum of 18.29 and 21.66.<\/h3><\/span><div class=\"spq_answer_block\" data-value=\"0\">60<\/div><div class=\"spq_answer_block\" data-value=\"1\">50<\/div><div class=\"spq_answer_block\" data-value=\"2\">40<\/div><div class=\"spq_answer_block\" data-value=\"3\">30<\/div><div class=\"sqp_question_hint\"><div class=\"sqp_question_hint__header\"><span class=\"spq_correct\">Correct<\/span><span class=\"spq_incorrect\">Incorrect<\/span><\/div><div class=\"sqp_question_hint__content\"><span>Correct answer is: 40<br\/>Let us round off the numbers to the nearest whole number.<br>\r\n18.29 is rounded to 18.<br>\r\n21.66 is rounded to 22.<br>\r\nBy adding, we get $18 + 22 = 40$.<br>\r\nThe estimated total is 40.<\/span><\/div><\/div><\/div><div class=\"spq_question_wrapper\" data-answer=\"0\"><span class=\"spq_question_header\"><span class=\"sqp_question_number\">5<\/span><h3 class=\"sqp_question_text\">The seventh grade in a school has 54 students and the eighth grade has 77 students. Which of the following is a better estimation for the total number of students in both grades? <\/h3><\/span><div class=\"spq_answer_block\" data-value=\"0\">130<\/div><div class=\"spq_answer_block\" data-value=\"1\">140<\/div><div class=\"spq_answer_block\" data-value=\"2\">135<\/div><div class=\"spq_answer_block\" data-value=\"3\">125<\/div><div class=\"sqp_question_hint\"><div class=\"sqp_question_hint__header\"><span class=\"spq_correct\">Correct<\/span><span class=\"spq_incorrect\">Incorrect<\/span><\/div><div class=\"sqp_question_hint__content\"><span>Correct answer is: 130<br\/>We can round off 54 to 50 students and 77 to 80 students. Adding 50 and 80 gives us 130. The correct estimation is 130.<\/span><\/div><\/div><\/div><div class=\"spq_question_wrapper\" data-answer=\"1\"><span class=\"spq_question_header\"><span class=\"sqp_question_number\">6<\/span><h3 class=\"sqp_question_text\">Which number is obtained when we round off 57.26 to the nearest whole number?<\/h3><\/span><div class=\"spq_answer_block\" data-value=\"0\">56<\/div><div class=\"spq_answer_block\" data-value=\"1\">57<\/div><div class=\"spq_answer_block\" data-value=\"2\">55<\/div><div class=\"spq_answer_block\" data-value=\"3\">54<\/div><div class=\"sqp_question_hint\"><div class=\"sqp_question_hint__header\"><span class=\"spq_correct\">Correct<\/span><span class=\"spq_incorrect\">Incorrect<\/span><\/div><div class=\"sqp_question_hint__content\"><span>Correct answer is: 57<br\/>Rounding off 57.26 to the nearest whole number gives us 57. This is because the number to the right of the decimal is less than 5. When the number to the right of the decimal is less than 5, the number to the left stays the same after rounding off.<\/span><\/div><\/div><\/div><div class=\"spq_question_wrapper\" data-answer=\"0\"><span class=\"spq_question_header\"><span class=\"sqp_question_number\">7<\/span><h3 class=\"sqp_question_text\">The moon takes 27.322 days to complete one earth rotation. What is the better estimate?<\/h3><\/span><div class=\"spq_answer_block\" data-value=\"0\">27 days<\/div><div class=\"spq_answer_block\" data-value=\"1\">28 days<\/div><div class=\"spq_answer_block\" data-value=\"2\">29 days<\/div><div class=\"spq_answer_block\" data-value=\"3\">30 days<\/div><div class=\"sqp_question_hint\"><div class=\"sqp_question_hint__header\"><span class=\"spq_correct\">Correct<\/span><span class=\"spq_incorrect\">Incorrect<\/span><\/div><div class=\"sqp_question_hint__content\"><span>Correct answer is: 27 days<br\/>The number to the right of the decimal is less than 5. When the number to the right of the decimal is less than 5, the number to the left stays the same after rounding off. <\/span><\/div><\/div><\/div><div class=\"spq_question_wrapper\" data-answer=\"2\"><span class=\"spq_question_header\"><span class=\"sqp_question_number\">8<\/span><h3 class=\"sqp_question_text\">What is the better estimate for the number 368.899 when we round it off to the nearest hundred?<\/h3><\/span><div class=\"spq_answer_block\" data-value=\"0\">368<\/div><div class=\"spq_answer_block\" data-value=\"1\">369<\/div><div class=\"spq_answer_block\" data-value=\"2\">400<\/div><div class=\"spq_answer_block\" data-value=\"3\">399<\/div><div class=\"sqp_question_hint\"><div class=\"sqp_question_hint__header\"><span class=\"spq_correct\">Correct<\/span><span class=\"spq_incorrect\">Incorrect<\/span><\/div><div class=\"sqp_question_hint__content\"><span>Correct answer is: 400<br\/>The number to the right of the hundred is greater than 5. When the number to the right of the hundred is greater than 5, the hundreds place is increased by 1 and is followed by zeros at the tens and ones places.<\/span><\/div><\/div><\/div><\/div>  <script type=\"application\/ld+json\">{\n        \"@context\": \"https:\/\/schema.org\/\", \n        \"@type\": \"Quiz\", \n        \"typicalAgeRange\": \"3-11\",\n        \"educationalLevel\":  \"beginner\",\n        \"assesses\" : \"Attend this quiz & Test your knowledge.\",\n        \"educationalAlignment\": [\n              {\n                \"@type\": \"AlignmentObject\",\n                \"alignmentType\": \"educationalSubject\",\n                \"targetName\": \"Math\"\n              }] ,\n        \"name\": \"Estimate - Definition with Examples\",        \n        \"about\": {\n                \"@type\": \"Thing\",\n                \"name\": \"Estimate - Definition with Examples\"\n        },  \n        \"hasPart\": [{\n                    \"@type\": \"Question\",   \n                    \"eduQuestionType\": \"Multiple choice\",\n                    \"learningResourceType\": \"Practice problem\",\n                    \"name\": \"Estimate the number of birds in the image given below.\",\n                    \"text\": \"Estimate the number of birds in the image given below. <img src=\\\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2023\/02\/pp1-2.png\\\"\/>\",\n                    \"comment\": {\n                      \"@type\": \"Comment\",\n                      \"text\": \"We can see 3 rows of about 7 birds in each. So we multiply 7 by 3 to get the estimated number of birds as 21.\"\n                    },\n                    \"encodingFormat\": \"text\/html\",\n                    \"suggestedAnswer\": [ {\n                                \"@type\": \"Answer\",\n                                \"position\": 0,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"10 birds\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"We can see 3 rows of about 7 birds in each. So we multiply 7 by 3 to get the estimated number of birds as 21.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 1,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"15 birds\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"We can see 3 rows of about 7 birds in each. So we multiply 7 by 3 to get the estimated number of birds as 21.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 3,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"30 birds\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"We can see 3 rows of about 7 birds in each. So we multiply 7 by 3 to get the estimated number of birds as 21.\"\n                                    }\n                                }],\n                    \"acceptedAnswer\": {\n                      \"@type\": \"Answer\",\n                      \"position\": 2,\n                      \"encodingFormat\": \"text\/html\",\n                      \"text\": \"21 birds\",\n                      \"comment\": {\n                          \"@type\": \"Comment\",\n                          \"text\": \"We can see 3 rows of about 7 birds in each. So we multiply 7 by 3 to get the estimated number of birds as 21.\"\n                        },\n                      \"answerExplanation\": {\n                        \"@type\": \"Comment\",\n                        \"text\": \"We can see 3 rows of about 7 birds in each. So we multiply 7 by 3 to get the estimated number of birds as 21.\"\n                      }\n                    } \n\n                    },{\n                    \"@type\": \"Question\",   \n                    \"eduQuestionType\": \"Multiple choice\",\n                    \"learningResourceType\": \"Practice problem\",\n                    \"name\": \"Round off the number 4392 to the nearest hundred.\",\n                    \"text\": \"Round off the number 4392 to the nearest hundred.\",\n                    \"comment\": {\n                      \"@type\": \"Comment\",\n                      \"text\": \"The tens place is 9, so it is a roundup. We will increase the digit in the hundreds place by 1. The rounded number is 4400.\"\n                    },\n                    \"encodingFormat\": \"text\/html\",\n                    \"suggestedAnswer\": [ {\n                                \"@type\": \"Answer\",\n                                \"position\": 0,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"4100\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"The tens place is 9, so it is a roundup. We will increase the digit in the hundreds place by 1. The rounded number is 4400.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 1,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"4200\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"The tens place is 9, so it is a roundup. We will increase the digit in the hundreds place by 1. The rounded number is 4400.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 2,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"4300\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"The tens place is 9, so it is a roundup. We will increase the digit in the hundreds place by 1. The rounded number is 4400.\"\n                                    }\n                                }],\n                    \"acceptedAnswer\": {\n                      \"@type\": \"Answer\",\n                      \"position\": 3,\n                      \"encodingFormat\": \"text\/html\",\n                      \"text\": \"4400\",\n                      \"comment\": {\n                          \"@type\": \"Comment\",\n                          \"text\": \"The tens place is 9, so it is a roundup. We will increase the digit in the hundreds place by 1. The rounded number is 4400.\"\n                        },\n                      \"answerExplanation\": {\n                        \"@type\": \"Comment\",\n                        \"text\": \"The tens place is 9, so it is a roundup. We will increase the digit in the hundreds place by 1. The rounded number is 4400.\"\n                      }\n                    } \n\n                    },{\n                    \"@type\": \"Question\",   \n                    \"eduQuestionType\": \"Multiple choice\",\n                    \"learningResourceType\": \"Practice problem\",\n                    \"name\": \"Lucy had 623 stickers. She gave 97 to her brother, Roger. Estimate how many stickers she has left.\",\n                    \"text\": \"Lucy had 623 stickers. She gave 97 to her brother, Roger. Estimate how many stickers she has left.\",\n                    \"comment\": {\n                      \"@type\": \"Comment\",\n                      \"text\": \"Round the number of stickers to the nearest hundred. 623 rounded to the nearest hundred is 600. The number of stickers she gave to her brother is 97. We can round it to the nearest ten and get 100.<br>\r\nLet us subtract:<br>\r\n$$600$$ $$\u2013$$ $$100 = 500$$<br>\r\nSo, Lucy has approximately 500 stickers left.\"\n                    },\n                    \"encodingFormat\": \"text\/html\",\n                    \"suggestedAnswer\": [ {\n                                \"@type\": \"Answer\",\n                                \"position\": 0,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"600 stickers\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"Round the number of stickers to the nearest hundred. 623 rounded to the nearest hundred is 600. The number of stickers she gave to her brother is 97. We can round it to the nearest ten and get 100.<br>\r\nLet us subtract:<br>\r\n$$600$$ $$\u2013$$ $$100 = 500$$<br>\r\nSo, Lucy has approximately 500 stickers left.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 2,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"400 stickers\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"Round the number of stickers to the nearest hundred. 623 rounded to the nearest hundred is 600. The number of stickers she gave to her brother is 97. We can round it to the nearest ten and get 100.<br>\r\nLet us subtract:<br>\r\n$$600$$ $$\u2013$$ $$100 = 500$$<br>\r\nSo, Lucy has approximately 500 stickers left.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 3,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"300 stickers\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"Round the number of stickers to the nearest hundred. 623 rounded to the nearest hundred is 600. The number of stickers she gave to her brother is 97. We can round it to the nearest ten and get 100.<br>\r\nLet us subtract:<br>\r\n$$600$$ $$\u2013$$ $$100 = 500$$<br>\r\nSo, Lucy has approximately 500 stickers left.\"\n                                    }\n                                }],\n                    \"acceptedAnswer\": {\n                      \"@type\": \"Answer\",\n                      \"position\": 1,\n                      \"encodingFormat\": \"text\/html\",\n                      \"text\": \"500 stickers\",\n                      \"comment\": {\n                          \"@type\": \"Comment\",\n                          \"text\": \"Round the number of stickers to the nearest hundred. 623 rounded to the nearest hundred is 600. The number of stickers she gave to her brother is 97. We can round it to the nearest ten and get 100.<br>\r\nLet us subtract:<br>\r\n$$600$$ $$\u2013$$ $$100 = 500$$<br>\r\nSo, Lucy has approximately 500 stickers left.\"\n                        },\n                      \"answerExplanation\": {\n                        \"@type\": \"Comment\",\n                        \"text\": \"Round the number of stickers to the nearest hundred. 623 rounded to the nearest hundred is 600. The number of stickers she gave to her brother is 97. We can round it to the nearest ten and get 100.<br>\r\nLet us subtract:<br>\r\n$$600$$ $$\u2013$$ $$100 = 500$$<br>\r\nSo, Lucy has approximately 500 stickers left.\"\n                      }\n                    } \n\n                    },{\n                    \"@type\": \"Question\",   \n                    \"eduQuestionType\": \"Multiple choice\",\n                    \"learningResourceType\": \"Practice problem\",\n                    \"name\": \"Estimate the sum of 18.29 and 21.66.\",\n                    \"text\": \"Estimate the sum of 18.29 and 21.66.\",\n                    \"comment\": {\n                      \"@type\": \"Comment\",\n                      \"text\": \"Let us round off the numbers to the nearest whole number.<br>\r\n18.29 is rounded to 18.<br>\r\n21.66 is rounded to 22.<br>\r\nBy adding, we get $$18 + 22 = 40$$.<br>\r\nThe estimated total is 40.\"\n                    },\n                    \"encodingFormat\": \"text\/html\",\n                    \"suggestedAnswer\": [ {\n                                \"@type\": \"Answer\",\n                                \"position\": 0,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"60\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"Let us round off the numbers to the nearest whole number.<br>\r\n18.29 is rounded to 18.<br>\r\n21.66 is rounded to 22.<br>\r\nBy adding, we get $$18 + 22 = 40$$.<br>\r\nThe estimated total is 40.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 1,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"50\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"Let us round off the numbers to the nearest whole number.<br>\r\n18.29 is rounded to 18.<br>\r\n21.66 is rounded to 22.<br>\r\nBy adding, we get $$18 + 22 = 40$$.<br>\r\nThe estimated total is 40.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 3,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"30\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"Let us round off the numbers to the nearest whole number.<br>\r\n18.29 is rounded to 18.<br>\r\n21.66 is rounded to 22.<br>\r\nBy adding, we get $$18 + 22 = 40$$.<br>\r\nThe estimated total is 40.\"\n                                    }\n                                }],\n                    \"acceptedAnswer\": {\n                      \"@type\": \"Answer\",\n                      \"position\": 2,\n                      \"encodingFormat\": \"text\/html\",\n                      \"text\": \"40\",\n                      \"comment\": {\n                          \"@type\": \"Comment\",\n                          \"text\": \"Let us round off the numbers to the nearest whole number.<br>\r\n18.29 is rounded to 18.<br>\r\n21.66 is rounded to 22.<br>\r\nBy adding, we get $$18 + 22 = 40$$.<br>\r\nThe estimated total is 40.\"\n                        },\n                      \"answerExplanation\": {\n                        \"@type\": \"Comment\",\n                        \"text\": \"Let us round off the numbers to the nearest whole number.<br>\r\n18.29 is rounded to 18.<br>\r\n21.66 is rounded to 22.<br>\r\nBy adding, we get $$18 + 22 = 40$$.<br>\r\nThe estimated total is 40.\"\n                      }\n                    } \n\n                    },{\n                    \"@type\": \"Question\",   \n                    \"eduQuestionType\": \"Multiple choice\",\n                    \"learningResourceType\": \"Practice problem\",\n                    \"name\": \"The seventh grade in a school has 54 students and the eighth grade has 77 students. Which of the following is a better estimation for the total number of students in both grades? \",\n                    \"text\": \"The seventh grade in a school has 54 students and the eighth grade has 77 students. Which of the following is a better estimation for the total number of students in both grades? \",\n                    \"comment\": {\n                      \"@type\": \"Comment\",\n                      \"text\": \"We can round off 54 to 50 students and 77 to 80 students. Adding 50 and 80 gives us 130. The correct estimation is 130.\"\n                    },\n                    \"encodingFormat\": \"text\/html\",\n                    \"suggestedAnswer\": [ {\n                                \"@type\": \"Answer\",\n                                \"position\": 1,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"140\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"We can round off 54 to 50 students and 77 to 80 students. Adding 50 and 80 gives us 130. The correct estimation is 130.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 2,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"135\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"We can round off 54 to 50 students and 77 to 80 students. Adding 50 and 80 gives us 130. The correct estimation is 130.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 3,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"125\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"We can round off 54 to 50 students and 77 to 80 students. Adding 50 and 80 gives us 130. The correct estimation is 130.\"\n                                    }\n                                }],\n                    \"acceptedAnswer\": {\n                      \"@type\": \"Answer\",\n                      \"position\": 0,\n                      \"encodingFormat\": \"text\/html\",\n                      \"text\": \"130\",\n                      \"comment\": {\n                          \"@type\": \"Comment\",\n                          \"text\": \"We can round off 54 to 50 students and 77 to 80 students. Adding 50 and 80 gives us 130. The correct estimation is 130.\"\n                        },\n                      \"answerExplanation\": {\n                        \"@type\": \"Comment\",\n                        \"text\": \"We can round off 54 to 50 students and 77 to 80 students. Adding 50 and 80 gives us 130. The correct estimation is 130.\"\n                      }\n                    } \n\n                    },{\n                    \"@type\": \"Question\",   \n                    \"eduQuestionType\": \"Multiple choice\",\n                    \"learningResourceType\": \"Practice problem\",\n                    \"name\": \"Which number is obtained when we round off 57.26 to the nearest whole number?\",\n                    \"text\": \"Which number is obtained when we round off 57.26 to the nearest whole number?\",\n                    \"comment\": {\n                      \"@type\": \"Comment\",\n                      \"text\": \"Rounding off 57.26 to the nearest whole number gives us 57. This is because the number to the right of the decimal is less than 5. When the number to the right of the decimal is less than 5, the number to the left stays the same after rounding off.\"\n                    },\n                    \"encodingFormat\": \"text\/html\",\n                    \"suggestedAnswer\": [ {\n                                \"@type\": \"Answer\",\n                                \"position\": 0,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"56\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"Rounding off 57.26 to the nearest whole number gives us 57. This is because the number to the right of the decimal is less than 5. When the number to the right of the decimal is less than 5, the number to the left stays the same after rounding off.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 2,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"55\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"Rounding off 57.26 to the nearest whole number gives us 57. This is because the number to the right of the decimal is less than 5. When the number to the right of the decimal is less than 5, the number to the left stays the same after rounding off.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 3,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"54\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"Rounding off 57.26 to the nearest whole number gives us 57. This is because the number to the right of the decimal is less than 5. When the number to the right of the decimal is less than 5, the number to the left stays the same after rounding off.\"\n                                    }\n                                }],\n                    \"acceptedAnswer\": {\n                      \"@type\": \"Answer\",\n                      \"position\": 1,\n                      \"encodingFormat\": \"text\/html\",\n                      \"text\": \"57\",\n                      \"comment\": {\n                          \"@type\": \"Comment\",\n                          \"text\": \"Rounding off 57.26 to the nearest whole number gives us 57. This is because the number to the right of the decimal is less than 5. When the number to the right of the decimal is less than 5, the number to the left stays the same after rounding off.\"\n                        },\n                      \"answerExplanation\": {\n                        \"@type\": \"Comment\",\n                        \"text\": \"Rounding off 57.26 to the nearest whole number gives us 57. This is because the number to the right of the decimal is less than 5. When the number to the right of the decimal is less than 5, the number to the left stays the same after rounding off.\"\n                      }\n                    } \n\n                    },{\n                    \"@type\": \"Question\",   \n                    \"eduQuestionType\": \"Multiple choice\",\n                    \"learningResourceType\": \"Practice problem\",\n                    \"name\": \"The moon takes 27.322 days to complete one earth rotation. What is the better estimate?\",\n                    \"text\": \"The moon takes 27.322 days to complete one earth rotation. What is the better estimate?\",\n                    \"comment\": {\n                      \"@type\": \"Comment\",\n                      \"text\": \"The number to the right of the decimal is less than 5. When the number to the right of the decimal is less than 5, the number to the left stays the same after rounding off. \"\n                    },\n                    \"encodingFormat\": \"text\/html\",\n                    \"suggestedAnswer\": [ {\n                                \"@type\": \"Answer\",\n                                \"position\": 1,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"28 days\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"The number to the right of the decimal is less than 5. When the number to the right of the decimal is less than 5, the number to the left stays the same after rounding off. \"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 2,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"29 days\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"The number to the right of the decimal is less than 5. When the number to the right of the decimal is less than 5, the number to the left stays the same after rounding off. \"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 3,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"30 days\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"The number to the right of the decimal is less than 5. When the number to the right of the decimal is less than 5, the number to the left stays the same after rounding off. \"\n                                    }\n                                }],\n                    \"acceptedAnswer\": {\n                      \"@type\": \"Answer\",\n                      \"position\": 0,\n                      \"encodingFormat\": \"text\/html\",\n                      \"text\": \"27 days\",\n                      \"comment\": {\n                          \"@type\": \"Comment\",\n                          \"text\": \"The number to the right of the decimal is less than 5. When the number to the right of the decimal is less than 5, the number to the left stays the same after rounding off. \"\n                        },\n                      \"answerExplanation\": {\n                        \"@type\": \"Comment\",\n                        \"text\": \"The number to the right of the decimal is less than 5. When the number to the right of the decimal is less than 5, the number to the left stays the same after rounding off. \"\n                      }\n                    } \n\n                    },{\n                    \"@type\": \"Question\",   \n                    \"eduQuestionType\": \"Multiple choice\",\n                    \"learningResourceType\": \"Practice problem\",\n                    \"name\": \"What is the better estimate for the number 368.899 when we round it off to the nearest hundred?\",\n                    \"text\": \"What is the better estimate for the number 368.899 when we round it off to the nearest hundred?\",\n                    \"comment\": {\n                      \"@type\": \"Comment\",\n                      \"text\": \"The number to the right of the hundred is greater than 5. When the number to the right of the hundred is greater than 5, the hundreds place is increased by 1 and is followed by zeros at the tens and ones places.\"\n                    },\n                    \"encodingFormat\": \"text\/html\",\n                    \"suggestedAnswer\": [ {\n                                \"@type\": \"Answer\",\n                                \"position\": 0,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"368\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"The number to the right of the hundred is greater than 5. When the number to the right of the hundred is greater than 5, the hundreds place is increased by 1 and is followed by zeros at the tens and ones places.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 1,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"369\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"The number to the right of the hundred is greater than 5. When the number to the right of the hundred is greater than 5, the hundreds place is increased by 1 and is followed by zeros at the tens and ones places.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 3,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"399\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"The number to the right of the hundred is greater than 5. When the number to the right of the hundred is greater than 5, the hundreds place is increased by 1 and is followed by zeros at the tens and ones places.\"\n                                    }\n                                }],\n                    \"acceptedAnswer\": {\n                      \"@type\": \"Answer\",\n                      \"position\": 2,\n                      \"encodingFormat\": \"text\/html\",\n                      \"text\": \"400\",\n                      \"comment\": {\n                          \"@type\": \"Comment\",\n                          \"text\": \"The number to the right of the hundred is greater than 5. When the number to the right of the hundred is greater than 5, the hundreds place is increased by 1 and is followed by zeros at the tens and ones places.\"\n                        },\n                      \"answerExplanation\": {\n                        \"@type\": \"Comment\",\n                        \"text\": \"The number to the right of the hundred is greater than 5. When the number to the right of the hundred is greater than 5, the hundreds place is increased by 1 and is followed by zeros at the tens and ones places.\"\n                      }\n                    } \n\n                    }]}<\/script><\/p>\n\n\n\n<h2 class=\"eplus-wrapper wp-block-heading\" id=\"14-frequently-asked-questions\">Frequently Asked Questions<\/h2>\n\n\n<div class=\"wp-block-ub-content-toggle\" id=\"ub-content-toggle-b4b28e07-90f3-4a76-ba71-fcbc912207b3\" data-mobilecollapse=\"true\" data-desktopcollapse=\"true\">\n<div class=\"wp-block-ub-content-toggle-accordion\">\n                <div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" aria-expanded=\"false\" aria-controls=\"ub-content-toggle-panel-0-b4b28e07-90f3-4a76-ba71-fcbc912207b3\" tabindex=\"0\">\n                    <p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b4b28e07-90f3-4a76-ba71-fcbc912207b3\"><strong>When do we use \u201cestimation\u201d in math?<\/strong><\/p><div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span>\n                    <\/div><\/div><div role=\"region\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-0-b4b28e07-90f3-4a76-ba71-fcbc912207b3\">\n\n<p class=\" eplus-wrapper\">We use <strong>estimation<\/strong> in Math when the exact answer to a problem is not required. The said problem can be resolved with an approximately realistic value. <strong>Estimating<\/strong> also helps us get the answer to a calculation faster. In this way, it saves time.<\/p>\n\n<\/div><\/div>\n\n<div class=\"wp-block-ub-content-toggle-accordion\">\n                <div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" aria-expanded=\"false\" aria-controls=\"ub-content-toggle-panel-1-b4b28e07-90f3-4a76-ba71-fcbc912207b3\" tabindex=\"0\">\n                    <p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b4b28e07-90f3-4a76-ba71-fcbc912207b3\"><strong>What are the advantages of \u201cestimating\u201d in math?<\/strong><\/p><div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span>\n                    <\/div><\/div><div role=\"region\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-1-b4b28e07-90f3-4a76-ba71-fcbc912207b3\">\n\n<p class=\" eplus-wrapper\">\u201cEstimating\u201d is an essential concept taught in math. It motivates the learners to consider the rationality and reasonableness of their answers. It is prudent to estimate before performing the actual calculation. Estimating also reduces the chances of mistakes made while computing. It develops a better understanding of the importance of numbers. It also discourages overreliance on math operations and procedures to arrive at the solution.<\/p>\n\n<\/div><\/div>\n\n<div class=\"wp-block-ub-content-toggle-accordion\">\n                <div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" aria-expanded=\"false\" aria-controls=\"ub-content-toggle-panel-2-b4b28e07-90f3-4a76-ba71-fcbc912207b3\" tabindex=\"0\">\n                    <p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b4b28e07-90f3-4a76-ba71-fcbc912207b3\"><strong>What is the difference between estimating and rounding in math?<\/strong><\/p><div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span>\n                    <\/div><\/div><div role=\"region\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-2-b4b28e07-90f3-4a76-ba71-fcbc912207b3\">\n\n<p class=\" eplus-wrapper\">When you are estimating in math, you use the information you know, or you can see. With this, you make a reasonable guess about the value. It is a rough calculation. With rounding, on the other hand, you round it off to the 10, 100, or 1000, and so on based on the set rules. Rounding off is an essential aspect of estimating. They both serve a similar purpose in math.<\/p>\n\n<\/div><\/div>\n\n<div class=\"wp-block-ub-content-toggle-accordion\">\n                <div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" aria-expanded=\"false\" aria-controls=\"ub-content-toggle-panel-3-b4b28e07-90f3-4a76-ba71-fcbc912207b3\" tabindex=\"0\">\n                    <p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b4b28e07-90f3-4a76-ba71-fcbc912207b3\"><strong>How is an estimate related to the exact value?<\/strong><\/p><div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span>\n                    <\/div><\/div><div role=\"region\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-3-b4b28e07-90f3-4a76-ba71-fcbc912207b3\">\n\n<p class=\" eplus-wrapper\">When we estimate something, it is a close approximation to the exact value of something.<\/p>\n\n\n\n<p class=\" eplus-wrapper\">For example: $257 + 241$<\/p>\n\n\n\n<p class=\" eplus-wrapper\">Here, we can estimate that the sum of the two numbers would be close to 500 (the estimated value). Upon actual calculation, we achieve the actual total of 498 (the exact value).<\/p>\n\n<\/div><\/div>\n\n<div class=\"wp-block-ub-content-toggle-accordion\">\n                <div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" aria-expanded=\"false\" aria-controls=\"ub-content-toggle-panel-4-b4b28e07-90f3-4a76-ba71-fcbc912207b3\" tabindex=\"0\">\n                    <p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b4b28e07-90f3-4a76-ba71-fcbc912207b3\"><strong>How does estimating improve accuracy in calculations?<\/strong><\/p><div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span>\n                    <\/div><\/div><div role=\"region\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-4-b4b28e07-90f3-4a76-ba71-fcbc912207b3\">\n\n<p class=\" eplus-wrapper\">Estimating is a very useful tool in identifying potential errors in calculation. It also helps us quickly verify our solutions. In these ways, estimating improves our accuracy in calculations.<\/p>\n\n<\/div><\/div>\n\n<div class=\"wp-block-ub-content-toggle-accordion\">\n                <div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" aria-expanded=\"false\" aria-controls=\"ub-content-toggle-panel-5-b4b28e07-90f3-4a76-ba71-fcbc912207b3\" tabindex=\"0\">\n                    <p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b4b28e07-90f3-4a76-ba71-fcbc912207b3\"><strong>What is the purpose of estimation in mathematics?<\/strong><\/p><div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span>\n                    <\/div><\/div><div role=\"region\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-5-b4b28e07-90f3-4a76-ba71-fcbc912207b3\">\n\n<p class=\" eplus-wrapper\">In mathematics, we focus heavily on accuracy. However, in some cases, the guess provides a speedy and almost correct response. As a result, we estimate in math to achieve a rapid and solid response.<\/p>\n\n<\/div><\/div>\n\n<div class=\"wp-block-ub-content-toggle-accordion\">\n                <div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" aria-expanded=\"false\" aria-controls=\"ub-content-toggle-panel-6-b4b28e07-90f3-4a76-ba71-fcbc912207b3\" tabindex=\"0\">\n                    <p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b4b28e07-90f3-4a76-ba71-fcbc912207b3\"><strong>What are the benefits of estimation?<\/strong><\/p><div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span>\n                    <\/div><\/div><div role=\"region\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-6-b4b28e07-90f3-4a76-ba71-fcbc912207b3\">\n\n<p class=\" eplus-wrapper\">Estimation can help you save time and effort on large projects. It also aids in the evaluation of any project&#8217;s feasibility. It allows us to get a clearer understanding of the situation.<\/p>\n\n<\/div><\/div>\n\n<div class=\"wp-block-ub-content-toggle-accordion\">\n                <div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" aria-expanded=\"false\" aria-controls=\"ub-content-toggle-panel-7-b4b28e07-90f3-4a76-ba71-fcbc912207b3\" tabindex=\"0\">\n                    <p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b4b28e07-90f3-4a76-ba71-fcbc912207b3\"><strong>What method of estimation is used to calculate sums and differences?<\/strong><\/p><div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span>\n                    <\/div><\/div><div role=\"region\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-7-b4b28e07-90f3-4a76-ba71-fcbc912207b3\">\n\n<p class=\" eplus-wrapper\">To get a rough approximation of the total sum, round all the numbers to the same place value, then add them together. To calculate the difference, round all the values to the same place value and then subtract them.<\/p>\n\n<\/div><\/div>\n\n<div class=\"wp-block-ub-content-toggle-accordion\">\n                <div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" aria-expanded=\"false\" aria-controls=\"ub-content-toggle-panel-8-b4b28e07-90f3-4a76-ba71-fcbc912207b3\" tabindex=\"0\">\n                    <p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b4b28e07-90f3-4a76-ba71-fcbc912207b3\"><strong>How is estimation applied to fractions?<\/strong><\/p><div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span>\n                    <\/div><\/div><div role=\"region\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-8-b4b28e07-90f3-4a76-ba71-fcbc912207b3\">\n\n<p class=\" eplus-wrapper\">To estimate fractions, round each fraction to the nearest 0, \u00bd , or 1.&nbsp;<\/p>\n\n\n\n<p class=\" eplus-wrapper\">1\/13 can be rounded off to 0 whereas 5\/9 can be rounded off to \u00bd.<\/p>\n\n<\/div><\/div>\n<\/div><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>What Is Estimation? Estimating is not something new to us. We do it&nbsp;all the time. Look at the image given below. We can see that Eddie, in the image below, is not exactly 2 feet tall but he is close to it. So, we can estimate his height and say that he is about 2 &#8230; <a title=\"Estimate &#8211; Definition with Examples\" class=\"read-more\" href=\"https:\/\/www.splashlearn.com\/math-vocabulary\/number-sense\/estimate\" aria-label=\"More on Estimate &#8211; Definition with Examples\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ub_ctt_via":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-2213","post","type-post","status-publish","format-standard","hentry","category-all"],"featured_image_src":null,"author_info":{"display_name":"Mithun Jhawar","author_link":"https:\/\/www.splashlearn.com\/math-vocabulary\/author\/mithun-jhawarsplashlearn-com\/"},"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-json\/wp\/v2\/posts\/2213","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-json\/wp\/v2\/comments?post=2213"}],"version-history":[{"count":14,"href":"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-json\/wp\/v2\/posts\/2213\/revisions"}],"predecessor-version":[{"id":25047,"href":"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-json\/wp\/v2\/posts\/2213\/revisions\/25047"}],"wp:attachment":[{"href":"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-json\/wp\/v2\/media?parent=2213"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-json\/wp\/v2\/categories?post=2213"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-json\/wp\/v2\/tags?post=2213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}