{"id":13548,"date":"2022-11-16T04:55:49","date_gmt":"2022-11-16T04:55:49","guid":{"rendered":"https:\/\/www.splashlearn.com\/math-vocabulary\/?page_id=13548"},"modified":"2024-02-05T11:04:49","modified_gmt":"2024-02-05T11:04:49","slug":"significant-figures","status":"publish","type":"post","link":"https:\/\/www.splashlearn.com\/math-vocabulary\/significant-figures","title":{"rendered":"Significant Figures"},"content":{"rendered":"<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-59fa45a5-8d05-4f52-ae40-32ef190c40f6\" 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\/significant-figures#0-what-are-significant-figures>What Are Significant Figures?<\/a><\/li><li><a href=https:\/\/www.splashlearn.com\/math-vocabulary\/significant-figures#1-significant-figures-definition>Significant Figures Definition<\/a><\/li><li><a href=https:\/\/www.splashlearn.com\/math-vocabulary\/significant-figures#3-how-to-round-off-significant-figures>How to Round Off Significant Figures<\/a><\/li><li><a href=https:\/\/www.splashlearn.com\/math-vocabulary\/significant-figures#8-solved-examples>Solved Examples<\/a><\/li><li><a href=https:\/\/www.splashlearn.com\/math-vocabulary\/significant-figures#9-practice-problems>Practice Problems<\/a><\/li><li><a href=https:\/\/www.splashlearn.com\/math-vocabulary\/significant-figures#10-frequently-asked-questions>Frequently Asked Questions<\/a><\/li><\/ul><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading eplus-wrapper\" id=\"0-what-are-significant-figures\">What Are Significant Figures?<\/h2>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Significant figures (or significant digits) are the number of digits in a given value or a measurement, necessary to decide the accuracy and precision of measurement.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">They are important in scientific or technical measurements.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">\u201cSignificant\u201d means important.<strong> <\/strong>They refer to the reliable digits in the given number, which are sufficient to convey accurate information. They also help us round off measurement values or the outcome of a calculation.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading eplus-wrapper\" id=\"1-significant-figures-definition\">Significant Figures Definition<\/h2>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Significant figures (or significant digits) are the number of digits important to determine the accuracy and precision of measurement, such as length, mass, or volume.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Significant digits in math convey the value of a number with accuracy. They are considered substantial figures that contribute to the precision of a number.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full eplus-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"614\" src=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-1.png\" alt=\"Significant figures examples\" class=\"wp-image-13559\" title=\"Significant figures examples\" srcset=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-1.png 620w, https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-1-300x297.png 300w, https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-1-150x150.png 150w, https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-1-120x120.png 120w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading eplus-wrapper\" id=\"2-what-are-the-rules-for-significant-figures\">What Are the Rules for Significant Figures?<\/h2>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Certain rules help us<strong>&nbsp;determine the number of significant figures<\/strong>. These rules are as follows:&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full eplus-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"446\" src=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-2.png\" alt=\"Rules to determine significant figures\" class=\"wp-image-13561\" title=\"Rules to determine significant figures\" srcset=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-2.png 620w, https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-2-300x216.png 300w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><\/figure>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">(1) All non-zero digits <strong>are significant<\/strong>.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">How many significant figures in 20? Two!<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>652.1<\/strong> miles $- 4$ significant figures.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>3.4 <\/strong>inches $- 2$ significant figures.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">(2) All zeros in between non-zero digits <strong>are significant<\/strong>.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>&nbsp;23.0041<\/strong> $- 6$ significant digits.&nbsp;<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>4005<\/strong> feet $- 4$ significant digits.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">(3) Zeros on the right of a decimal point and before (or to the left of) the first non-zero digit<strong> are not significant. <\/strong>They only represent the position of the decimal point.&nbsp;<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">$0.003$ $-$ $1$ significant digit.&nbsp;<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">$0.0034$ $-$ $2$ significant digits<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">(4) Zeros on the right of a decimal point <strong>are significant<\/strong>, provided there is no non-zero digit after them.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">$7.00$ $-$ $3$ significant digits.&nbsp;<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">(5) Zeros on the right of the last non-zero digit after a decimal point <strong>are significant<\/strong>. So, final zeros or trailing zeros in the decimal part are significant.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">$0.6500$ $-$ $4$ significant digits&nbsp;<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">$12.300$ $-$ $5$ significant digits<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">(6) In a measurement value, zeros that occur on the right of the last non-zero digit are significant.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>2650 <\/strong>inches $- 4$ significant digits<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Let\u2019s take a look at a few examples for better understanding.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Significant figures examples:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full eplus-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"461\" height=\"332\" src=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-3.png\" alt=\"Examples of significant figures\" class=\"wp-image-13562\" title=\"Examples of significant figures\" srcset=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-3.png 461w, https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-3-300x216.png 300w\" sizes=\"auto, (max-width: 461px) 100vw, 461px\" \/><\/figure>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">In summary:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full eplus-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"497\" src=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-4.png\" alt=\"Rules for determining significant figures\" class=\"wp-image-13563\" title=\"Rules for determining significant figures\" srcset=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-4.png 620w, https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-4-300x240.png 300w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading eplus-wrapper\" id=\"3-how-to-round-off-significant-figures\">How to Round Off Significant Figures<\/h2>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">To round off <strong>significant figures<\/strong>,<strong> <\/strong>we have to omit one or more digits from the right side of the number until we reach the number of significant digits that we want to round it off to.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">First, we have to look at the digit on the right end of the number (to the right of the digit we want to round it off to).<\/p>\n\n\n\n<ol class=\"eplus-wrapper wp-block-list\">\n<li class=\"eplus-wrapper\">If the digit is lower than 5, the number is rounded off to the lower number.<\/li>\n\n\n\n<li class=\"eplus-wrapper\">&nbsp;If the digit is greater than or equal to 5, the number is rounded up to the higher number.<\/li>\n<\/ol>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">If there is more than one digit on the left, the number will be rounded off as a whole and not digit by digit.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Confused? Let\u2019s look at an example!<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>Example:<\/strong> How many significant figures are there in 0.04582? Four! The four significant digits are 4, 5, 8, and 2.&nbsp;<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Let\u2019s round off this number to three significant digits.&nbsp;<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Check the last digit, which is 2.&nbsp;<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">We will round it to 0.0458 since the last digit, 2, is less than 5.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">If we want to round it off further to 2 significant digits, then it will be rounded up to 0.046 because the last digit, 8, is greater than 5.&nbsp;<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Here\u2019s an example of a decimal rounded from 6 significant digits to 1 significant digit:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full eplus-wrapper\"><img loading=\"lazy\" decoding=\"async\" width=\"531\" height=\"266\" src=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-5.png\" alt=\"Rounding decimals to significant digits\" class=\"wp-image-13564\" title=\"Rounding decimals to significant digits\" srcset=\"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-5.png 531w, https:\/\/www.splashlearn.com\/math-vocabulary\/wp-content\/uploads\/2022\/11\/What-are-significant-figures-5-300x150.png 300w\" sizes=\"auto, (max-width: 531px) 100vw, 531px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading eplus-wrapper\" id=\"4-multiplication-and-division-with-significant-figures\">Multiplication and Division with Significant Figures<\/h2>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">When multiplying and dividing&nbsp;<strong>significant figures<\/strong>, we follow the given steps.&nbsp;<\/p>\n\n\n\n<ul class=\"eplus-wrapper wp-block-list\">\n<li class=\"eplus-wrapper\">Identify significant digits of each number.<\/li>\n\n\n\n<li class=\"eplus-wrapper\">Find the least number of significant digits in any of the numbers.<\/li>\n\n\n\n<li class=\"eplus-wrapper\">Multiply or divide the numbers in the problem as you would normally.<\/li>\n\n\n\n<li class=\"eplus-wrapper\">Once you get the product or quotient, round off the number so it does not have more significant digits than the number with the least significant digits.<\/li>\n<\/ul>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">The LEAST number of significant figures in the given numbers determines the number of significant figures in the answer.&nbsp;<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>Example: <\/strong>$1.4 \\times 2 = 2.8$<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>1.4<\/strong>: 2 significant digits and <strong>2<\/strong>: 1 significant digit<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Least number of significant digits $= 1$&nbsp;<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">So, we round 2.6 to 3 since the last digit $6 \\gt 5$.<\/p>\n\n\n\n<h2 class=\"wp-block-heading eplus-wrapper\" id=\"5-addition-and-subtraction-with-significant-figures\">Addition and Subtraction with Significant Figures<\/h2>\n\n\n\n<ul class=\"eplus-wrapper wp-block-list\">\n<li class=\"eplus-wrapper\">For each number, check the number of&nbsp;<strong>significant figures<\/strong> to the right of the decimal point (in the decimal part).<\/li>\n\n\n\n<li class=\"eplus-wrapper\">Identify the LEAST number of significant digits.<\/li>\n\n\n\n<li class=\"eplus-wrapper\">Add or subtract the numbers in the usual manner.<\/li>\n\n\n\n<li class=\"eplus-wrapper\">When you get the final sum or difference, round off the number so that it does not have more significant digits on the right of the decimal point than the least number you found earlier.<\/li>\n<\/ul>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>Example:<\/strong> Add 3.240 inches and 8.12 inches.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Here, <strong>3.240<\/strong>: 3 significant figures in the decimal part&nbsp;<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong>8.12: <\/strong>2 significant figures in the decimal part<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Adding two decimals, we get<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">$3.240 + 8.12 = 11.360$<strong>, <\/strong>which has 3 significant digits in the decimal part.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">So, we round it off to two significant figures to get 11.36.<\/p>\n\n\n\n<h2 class=\"wp-block-heading eplus-wrapper\" id=\"6-fun-facts\">Fun Facts!<\/h2>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Here are some fun facts about&nbsp;<strong>significant figures<\/strong>:<\/p>\n\n\n\n<ul class=\"eplus-wrapper wp-block-list\">\n<li class=\"eplus-wrapper\">Significant digits are also called &#8220;<strong>sig figs<\/strong>.&#8221;&nbsp;<\/li>\n\n\n\n<li class=\"eplus-wrapper\">In earlier times, significant digits were used to refer to the non-zero digits on the left of the zeros on the right end of a number. For example, 4500 would have two significant digits.&nbsp;<\/li>\n\n\n\n<li class=\"eplus-wrapper\">In modern times, significant digits are used for measurements and accuracy. Rounding errors would often affect the accuracy of mathematical and scientific calculations. For this reason, there was a need to develop rules for rounding off numbers and <a href=\"https:\/\/www.splashlearn.com\/math-vocabulary\/measurements\/measurement\" title=\"\">measurements<\/a>.\u00a0<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading eplus-wrapper\" id=\"7-conclusion\">Conclusion<\/h2>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Once you\u2019ve learned the rules, you can easily count the <strong>significant figures<\/strong> in a number. The rules for zeros, decimal points, and rounding off are the most important. Keep practicing, and you&#8217;ll be able to add, <a href=\"https:\/\/www.splashlearn.com\/math-vocabulary\/subtraction\/subtract\" title=\"\">subtract<\/a>, <a href=\"https:\/\/www.splashlearn.com\/math-vocabulary\/division\/division\" title=\"\">divide<\/a> and multiply without a sweat!<\/p>\n\n\n\n<h2 class=\"wp-block-heading eplus-wrapper\" id=\"8-solved-examples\">Solved Examples<\/h2>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>1. How many significant digits are there in the number 0.002?<\/strong><\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>Solution:<\/strong> There is one significant figure in 0.002. Leading zeros are not significant.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>2. How many significant digits are there in the number 67.30?&nbsp;<\/strong><\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>Solution:<\/strong> There are four&nbsp;<strong>significant figures <\/strong>in 67.30. Final or trailing zeros are significant.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>3. Add these numbers by applying the significant figures rules: 42, 7.8, 6.50, 12.<\/strong><\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>Solution:&nbsp;<\/strong>$42 + 7.8 + 6.50 + 12 = 68.3$<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">For the given numbers, the least number of significant digits on the right of the decimal point is 1. So, the sum 68.3 will stay as 68.3 since it has one significant number after the decimal point.&nbsp;<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>4. Round off the number 43.8 to two significant digits.&nbsp;<\/strong><\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>Solution:<\/strong> Looking at the last digit, 8, we can see it is more than 5.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Given that the number has to be rounded off to two significant digits, it will be rounded off to 44.&nbsp;<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>5. Multiply the numbers 11.6, 8.30, and 22.001.&nbsp;<\/strong><\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><strong>Solution:&nbsp;<\/strong>Out of the given numbers, the least number of significant numbers is 3. Multiplying the numbers: $11.6 \\times 8.30 \\times 22.001 = 2118.25268$<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">To round it off to 3 significant numbers, we have to look at the number right of 3 significant numbers, which is 8.<\/p>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Since it is greater than 5, the number will be rounded off to 212.<\/p>\n\n\n\n<h2 class=\"wp-block-heading eplus-wrapper\" id=\"9-practice-problems\">Practice Problems<\/h2>\n\n\n\n<p class=\"eplus-wrapper wp-block-paragraph\"><div class=\"spq_wrapper\"><h2 style=\"display:none;\">Significant Figures<\/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\">Determine the number of significant figures in the number 23.02.<\/h3><\/span><div class=\"spq_answer_block\" data-value=\"0\">3<\/div><div class=\"spq_answer_block\" data-value=\"1\">2<\/div><div class=\"spq_answer_block\" data-value=\"2\">4<\/div><div class=\"spq_answer_block\" data-value=\"3\">1<\/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: 4<br\/>There are four significant digits in this number. Remember, zeros after a decimal point and before a significant number are not significant.<\/span><\/div><\/div><\/div><div class=\"spq_question_wrapper\" data-answer=\"0\"><span class=\"spq_question_header\"><span class=\"sqp_question_number\">2<\/span><h3 class=\"sqp_question_text\">Round off the number 53.46 to three significant digits.<\/h3><\/span><div class=\"spq_answer_block\" data-value=\"0\">53.5<\/div><div class=\"spq_answer_block\" data-value=\"1\">53.4<\/div><div class=\"spq_answer_block\" data-value=\"2\">53.46<\/div><div class=\"spq_answer_block\" data-value=\"3\">53.0<\/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: 53.5<br\/>The last digit is greater than 5, so we round off the number to 53.5.<\/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\">Subtract these numbers and round off the difference, applying the rules for significant numbers: 50.60 and 20.3.<\/h3><\/span><div class=\"spq_answer_block\" data-value=\"0\">30.30<\/div><div class=\"spq_answer_block\" data-value=\"1\">30.3<\/div><div class=\"spq_answer_block\" data-value=\"2\">31<\/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: 30.3<br\/>$50.60$ $\u200b\u200b\u2013$ $20.3 = 30.3$. Out of the given numbers, the least number of significant digits after the decimal point is 1. So, the difference will remain at 30.3.<\/span><\/div><\/div><\/div><div class=\"spq_question_wrapper\" data-answer=\"0\"><span class=\"spq_question_header\"><span class=\"sqp_question_number\">4<\/span><h3 class=\"sqp_question_text\">Divide the numbers 13.7 and 3.2, applying the rules for significant numbers.<\/h3><\/span><div class=\"spq_answer_block\" data-value=\"0\">4.3<\/div><div class=\"spq_answer_block\" data-value=\"1\">4.28<\/div><div class=\"spq_answer_block\" data-value=\"2\">3.7<\/div><div class=\"spq_answer_block\" data-value=\"3\">4<\/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: 4.3<br\/>Dividing the numbers we get: $\\frac{13.7}{3.2} = 4.28125$<br>\r\nIn the given numbers, the least number of significant numbers is 2.<br>\r\nSo, 4.28 has to be rounded off down to 2 significant numbers, which will make it 4.3.<\/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\">How many significant figures are there in 9.000?<\/h3><\/span><div class=\"spq_answer_block\" data-value=\"0\">4<\/div><div class=\"spq_answer_block\" data-value=\"1\">1<\/div><div class=\"spq_answer_block\" data-value=\"2\">3<\/div><div class=\"spq_answer_block\" data-value=\"3\">2<\/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: 4<br\/>There are 4 significant digits in the number 9.000. Zeros after a decimal point are significant if there is no non-zero number after them.<\/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\": \"Significant Figures\",        \n        \"about\": {\n                \"@type\": \"Thing\",\n                \"name\": \"Significant Figures\"\n        },  \n        \"hasPart\": [{\n                    \"@type\": \"Question\",   \n                    \"eduQuestionType\": \"Multiple choice\",\n                    \"learningResourceType\": \"Practice problem\",\n                    \"name\": \"Determine the number of significant figures in the number 23.02.\",\n                    \"text\": \"Determine the number of significant figures in the number 23.02.\",\n                    \"comment\": {\n                      \"@type\": \"Comment\",\n                      \"text\": \"There are four significant digits in this number. Remember, zeros after a decimal point and before a significant number are not significant.\"\n                    },\n                    \"encodingFormat\": \"text\/html\",\n                    \"suggestedAnswer\": [ {\n                                \"@type\": \"Answer\",\n                                \"position\": 0,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"3\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"There are four significant digits in this number. Remember, zeros after a decimal point and before a significant number are not significant.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 1,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"2\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"There are four significant digits in this number. Remember, zeros after a decimal point and before a significant number are not significant.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 3,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"1\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"There are four significant digits in this number. Remember, zeros after a decimal point and before a significant number are not significant.\"\n                                    }\n                                }],\n                    \"acceptedAnswer\": {\n                      \"@type\": \"Answer\",\n                      \"position\": 2,\n                      \"encodingFormat\": \"text\/html\",\n                      \"text\": \"4\",\n                      \"comment\": {\n                          \"@type\": \"Comment\",\n                          \"text\": \"There are four significant digits in this number. Remember, zeros after a decimal point and before a significant number are not significant.\"\n                        },\n                      \"answerExplanation\": {\n                        \"@type\": \"Comment\",\n                        \"text\": \"There are four significant digits in this number. Remember, zeros after a decimal point and before a significant number are not significant.\"\n                      }\n                    } \n\n                    },{\n                    \"@type\": \"Question\",   \n                    \"eduQuestionType\": \"Multiple choice\",\n                    \"learningResourceType\": \"Practice problem\",\n                    \"name\": \"Round off the number 53.46 to three significant digits.\",\n                    \"text\": \"Round off the number 53.46 to three significant digits.\",\n                    \"comment\": {\n                      \"@type\": \"Comment\",\n                      \"text\": \"The last digit is greater than 5, so we round off the number to 53.5.\"\n                    },\n                    \"encodingFormat\": \"text\/html\",\n                    \"suggestedAnswer\": [ {\n                                \"@type\": \"Answer\",\n                                \"position\": 1,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"53.4\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"The last digit is greater than 5, so we round off the number to 53.5.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 2,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"53.46\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"The last digit is greater than 5, so we round off the number to 53.5.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 3,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"53.0\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"The last digit is greater than 5, so we round off the number to 53.5.\"\n                                    }\n                                }],\n                    \"acceptedAnswer\": {\n                      \"@type\": \"Answer\",\n                      \"position\": 0,\n                      \"encodingFormat\": \"text\/html\",\n                      \"text\": \"53.5\",\n                      \"comment\": {\n                          \"@type\": \"Comment\",\n                          \"text\": \"The last digit is greater than 5, so we round off the number to 53.5.\"\n                        },\n                      \"answerExplanation\": {\n                        \"@type\": \"Comment\",\n                        \"text\": \"The last digit is greater than 5, so we round off the number to 53.5.\"\n                      }\n                    } \n\n                    },{\n                    \"@type\": \"Question\",   \n                    \"eduQuestionType\": \"Multiple choice\",\n                    \"learningResourceType\": \"Practice problem\",\n                    \"name\": \"Subtract these numbers and round off the difference, applying the rules for significant numbers: 50.60 and 20.3.\",\n                    \"text\": \"Subtract these numbers and round off the difference, applying the rules for significant numbers: 50.60 and 20.3.\",\n                    \"comment\": {\n                      \"@type\": \"Comment\",\n                      \"text\": \"$$50.60$$ $$\u200b\u200b\u2013$$ $$20.3 = 30.3$$. Out of the given numbers, the least number of significant digits after the decimal point is 1. So, the difference will remain at 30.3.\"\n                    },\n                    \"encodingFormat\": \"text\/html\",\n                    \"suggestedAnswer\": [ {\n                                \"@type\": \"Answer\",\n                                \"position\": 0,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"30.30\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"$$50.60$$ $$\u200b\u200b\u2013$$ $$20.3 = 30.3$$. Out of the given numbers, the least number of significant digits after the decimal point is 1. So, the difference will remain at 30.3.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 2,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"31\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"$$50.60$$ $$\u200b\u200b\u2013$$ $$20.3 = 30.3$$. Out of the given numbers, the least number of significant digits after the decimal point is 1. So, the difference will remain at 30.3.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 3,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"30\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"$$50.60$$ $$\u200b\u200b\u2013$$ $$20.3 = 30.3$$. Out of the given numbers, the least number of significant digits after the decimal point is 1. So, the difference will remain at 30.3.\"\n                                    }\n                                }],\n                    \"acceptedAnswer\": {\n                      \"@type\": \"Answer\",\n                      \"position\": 1,\n                      \"encodingFormat\": \"text\/html\",\n                      \"text\": \"30.3\",\n                      \"comment\": {\n                          \"@type\": \"Comment\",\n                          \"text\": \"$$50.60$$ $$\u200b\u200b\u2013$$ $$20.3 = 30.3$$. Out of the given numbers, the least number of significant digits after the decimal point is 1. So, the difference will remain at 30.3.\"\n                        },\n                      \"answerExplanation\": {\n                        \"@type\": \"Comment\",\n                        \"text\": \"$$50.60$$ $$\u200b\u200b\u2013$$ $$20.3 = 30.3$$. Out of the given numbers, the least number of significant digits after the decimal point is 1. So, the difference will remain at 30.3.\"\n                      }\n                    } \n\n                    },{\n                    \"@type\": \"Question\",   \n                    \"eduQuestionType\": \"Multiple choice\",\n                    \"learningResourceType\": \"Practice problem\",\n                    \"name\": \"Divide the numbers 13.7 and 3.2, applying the rules for significant numbers.\",\n                    \"text\": \"Divide the numbers 13.7 and 3.2, applying the rules for significant numbers.\",\n                    \"comment\": {\n                      \"@type\": \"Comment\",\n                      \"text\": \"Dividing the numbers we get: $$\\\\frac{13.7}{3.2} = 4.28125$$<br>\r\nIn the given numbers, the least number of significant numbers is 2.<br>\r\nSo, 4.28 has to be rounded off down to 2 significant numbers, which will make it 4.3.\"\n                    },\n                    \"encodingFormat\": \"text\/html\",\n                    \"suggestedAnswer\": [ {\n                                \"@type\": \"Answer\",\n                                \"position\": 1,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"4.28\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"Dividing the numbers we get: $$\\\\frac{13.7}{3.2} = 4.28125$$<br>\r\nIn the given numbers, the least number of significant numbers is 2.<br>\r\nSo, 4.28 has to be rounded off down to 2 significant numbers, which will make it 4.3.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 2,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"3.7\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"Dividing the numbers we get: $$\\\\frac{13.7}{3.2} = 4.28125$$<br>\r\nIn the given numbers, the least number of significant numbers is 2.<br>\r\nSo, 4.28 has to be rounded off down to 2 significant numbers, which will make it 4.3.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 3,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"4\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"Dividing the numbers we get: $$\\\\frac{13.7}{3.2} = 4.28125$$<br>\r\nIn the given numbers, the least number of significant numbers is 2.<br>\r\nSo, 4.28 has to be rounded off down to 2 significant numbers, which will make it 4.3.\"\n                                    }\n                                }],\n                    \"acceptedAnswer\": {\n                      \"@type\": \"Answer\",\n                      \"position\": 0,\n                      \"encodingFormat\": \"text\/html\",\n                      \"text\": \"4.3\",\n                      \"comment\": {\n                          \"@type\": \"Comment\",\n                          \"text\": \"Dividing the numbers we get: $$\\\\frac{13.7}{3.2} = 4.28125$$<br>\r\nIn the given numbers, the least number of significant numbers is 2.<br>\r\nSo, 4.28 has to be rounded off down to 2 significant numbers, which will make it 4.3.\"\n                        },\n                      \"answerExplanation\": {\n                        \"@type\": \"Comment\",\n                        \"text\": \"Dividing the numbers we get: $$\\\\frac{13.7}{3.2} = 4.28125$$<br>\r\nIn the given numbers, the least number of significant numbers is 2.<br>\r\nSo, 4.28 has to be rounded off down to 2 significant numbers, which will make it 4.3.\"\n                      }\n                    } \n\n                    },{\n                    \"@type\": \"Question\",   \n                    \"eduQuestionType\": \"Multiple choice\",\n                    \"learningResourceType\": \"Practice problem\",\n                    \"name\": \"How many significant figures are there in 9.000?\",\n                    \"text\": \"How many significant figures are there in 9.000?\",\n                    \"comment\": {\n                      \"@type\": \"Comment\",\n                      \"text\": \"There are 4 significant digits in the number 9.000. Zeros after a decimal point are significant if there is no non-zero number after them.\"\n                    },\n                    \"encodingFormat\": \"text\/html\",\n                    \"suggestedAnswer\": [ {\n                                \"@type\": \"Answer\",\n                                \"position\": 1,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"1\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"There are 4 significant digits in the number 9.000. Zeros after a decimal point are significant if there is no non-zero number after them.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 2,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"3\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"There are 4 significant digits in the number 9.000. Zeros after a decimal point are significant if there is no non-zero number after them.\"\n                                    }\n                                }, {\n                                \"@type\": \"Answer\",\n                                \"position\": 3,\n                                \"encodingFormat\": \"text\/html\",\n                                \"text\": \"2\",\n                                \"comment\": {\n                                    \"@type\": \"Comment\",\n                                    \"text\": \"There are 4 significant digits in the number 9.000. Zeros after a decimal point are significant if there is no non-zero number after them.\"\n                                    }\n                                }],\n                    \"acceptedAnswer\": {\n                      \"@type\": \"Answer\",\n                      \"position\": 0,\n                      \"encodingFormat\": \"text\/html\",\n                      \"text\": \"4\",\n                      \"comment\": {\n                          \"@type\": \"Comment\",\n                          \"text\": \"There are 4 significant digits in the number 9.000. Zeros after a decimal point are significant if there is no non-zero number after them.\"\n                        },\n                      \"answerExplanation\": {\n                        \"@type\": \"Comment\",\n                        \"text\": \"There are 4 significant digits in the number 9.000. Zeros after a decimal point are significant if there is no non-zero number after them.\"\n                      }\n                    } \n\n                    }]}<\/script><\/p>\n\n\n\n<h2 class=\"wp-block-heading eplus-wrapper\" id=\"10-frequently-asked-questions\">Frequently Asked Questions<\/h2>\n\n\n<div class=\"wp-block-ub-content-toggle\" id=\"ub-content-toggle-b97f2327-0fb9-4df1-8341-38f817cc1766\" 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-b97f2327-0fb9-4df1-8341-38f817cc1766\" tabindex=\"0\">\n                    <p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b97f2327-0fb9-4df1-8341-38f817cc1766\"><strong>Why are significant digits important?<\/strong><\/p><div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap left\"><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-b97f2327-0fb9-4df1-8341-38f817cc1766\">\n\n<p class=\"eplus-wrapper wp-block-paragraph\">The more significant digits a number has, the higher degree of precision it carries. For example, 36.65 gives us a more precise indication than 36.<\/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-b97f2327-0fb9-4df1-8341-38f817cc1766\" tabindex=\"0\">\n                    <p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b97f2327-0fb9-4df1-8341-38f817cc1766\"><strong>How do you round off significant digits when the digit on the right is exactly 5?<\/strong><\/p><div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap left\"><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-b97f2327-0fb9-4df1-8341-38f817cc1766\">\n\n<p class=\"eplus-wrapper wp-block-paragraph\">When the digit is exactly 5, the number is rounded either up or down.<\/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-b97f2327-0fb9-4df1-8341-38f817cc1766\" tabindex=\"0\">\n                    <p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b97f2327-0fb9-4df1-8341-38f817cc1766\"><strong>Can a number without a decimal point have significant digits?<\/strong><\/p><div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap left\"><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-b97f2327-0fb9-4df1-8341-38f817cc1766\">\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Yes, in a whole number like 1465, all the digits are significant.<\/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-b97f2327-0fb9-4df1-8341-38f817cc1766\" tabindex=\"0\">\n                    <p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b97f2327-0fb9-4df1-8341-38f817cc1766\"><strong>Is a non-zero digit always significant, even if it is after the decimal point?<\/strong><\/p><div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap left\"><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-b97f2327-0fb9-4df1-8341-38f817cc1766\">\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Yes, a non-zero digit is always significant, even if it is after the decimal point.<\/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-b97f2327-0fb9-4df1-8341-38f817cc1766\" tabindex=\"0\">\n                    <p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b97f2327-0fb9-4df1-8341-38f817cc1766\"><strong>How are significant digits helpful in real life?<\/strong><\/p><div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap left\"><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-b97f2327-0fb9-4df1-8341-38f817cc1766\">\n\n<p class=\"eplus-wrapper wp-block-paragraph\">Significant figures&nbsp;are helpful in real life because they allow for more accurate results in calculations, especially in sciences, applied mathematics, or technical fields. The final number after calculations can represent the measurement more closely.<\/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-b97f2327-0fb9-4df1-8341-38f817cc1766\" tabindex=\"0\">\n                    <p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b97f2327-0fb9-4df1-8341-38f817cc1766\"><strong>What is an \u201dexact number\u201d?<\/strong><\/p><div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap left\"><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-b97f2327-0fb9-4df1-8341-38f817cc1766\">\n\n<p class=\"eplus-wrapper wp-block-paragraph\">The numbers that have no uncertainty are called exact numbers. They have defined values. Example: Exactly 12 inches make one foot.<\/p>\n\n<\/div><\/div>\n<\/div>\n\n\n<h2 class=\"wp-block-heading eplus-wrapper\" id=\"11-related-article-links\">Related Article Links<\/h2>\n\n\n\n<ul class=\"eplus-wrapper wp-block-list\">\n<li class=\"eplus-wrapper\"><a href=\"https:\/\/www.splashlearn.com\/math-vocabulary\/decimals\/decimal-place-value\">Decimal place value<\/a><\/li>\n\n\n\n<li class=\"eplus-wrapper\"><a href=\"https:\/\/www.splashlearn.com\/math-vocabulary\/decimals\/decimal-point\">Decimal point<\/a><\/li>\n\n\n\n<li class=\"eplus-wrapper\"><a href=\"https:\/\/www.splashlearn.com\/math-vocabulary\/decimals\/expanded-form-with-decimals\">Expanded form with decimals<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>What Are Significant Figures? Significant figures (or significant digits) are the number of digits in a given value or a measurement, necessary to decide the accuracy and precision of measurement. They are important in scientific or technical measurements. \u201cSignificant\u201d means important. They refer to the reliable digits in the given number, which are sufficient to &#8230; <a title=\"Significant Figures\" class=\"read-more\" href=\"https:\/\/www.splashlearn.com\/math-vocabulary\/significant-figures\" aria-label=\"More on Significant Figures\">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-13548","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\/13548","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=13548"}],"version-history":[{"count":24,"href":"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-json\/wp\/v2\/posts\/13548\/revisions"}],"predecessor-version":[{"id":39903,"href":"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-json\/wp\/v2\/posts\/13548\/revisions\/39903"}],"wp:attachment":[{"href":"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-json\/wp\/v2\/media?parent=13548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-json\/wp\/v2\/categories?post=13548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.splashlearn.com\/math-vocabulary\/wp-json\/wp\/v2\/tags?post=13548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}