# Dollar – Definition with Examples

A dollar is a unit of money used in several countries like the US, Australia, Canada, and many more. The currency of the US is the United States Dollar (USD). Its symbol is $. Source ## History and Origin of the Dollar The word dollar comes from silver coins minted in 1518 in Bohemia. After passing through parts of Europe, and later, Spanish colonies around America, it finally arrived in the US. It was adopted as the official currency of the US in the 18th century, where it has been used ever since. Countries Using Dollar as their Currency • The United States and its territories • Australia • New Zealand • Hong Kong • Singapore • Canada • Jamaica and many more countries. How to Write an Amount in Dollars Using Symbols To write an amount in dollars, first write the country symbol (US) followed by the dollar sign ($ \$$) and then the dollar figure. For example, US\$$ 25.99.

Money Bills of the US

American bills or paper currency comes in seven denominations: $\$$1, \$$2,$\$$5, \$$10, $\$$20, \$$50, and$\$$100. Source Some Dollar-Related Conversions • 1 dollar = 100 cents, so 1 cent is equal to 0.01 dollars. • 1 nickel = 5 cents, so 1 nickel is equal to 0.05 dollars. • 1 dime = 10 cents, so 1 dime is equal to 0.1 dollars. • 1 quarter = 25 cents, so 1 quarter is equal to 0.25 dollars. ## Solved Examples Q1. Marilyn has 90 cents. She wants them exchanged for dimes. How many dimes will she get back? Solution: We know that 10 cents = 1 dime So, 90 cents = 9 dimes Q2. Sam donated 500 cents and Beth donated \$$7. In total, how many dollars did they donate?

Solution:

We know that 100 cents = 1 dollar.

So, 500 cents = 5 dollars

This means Sam donated $\$5$. Also, we know that Beth donated$\$7$.

So, together they donated $\$$12 (= \5 + \$$7). Q3. How many dimes make$\$$350? Solution: 100 cents equals 1 dollar and 10 cents equals 1 dime. So, 10 dimes make 1 dollar. To make \$$350 we will need 350 × 10 dimes. That is, 3500 dimes make $350. ## Practice Problems ## Frequently Asked Questions The first United States bills were published as demand notes to fund the Civil War of 1861. The notes were called greenbacks because of their green color. The US bills are available in seven denominations:$\$$1, \$$2, $\$$5, \$$10,$\$$20, \$$50, and $\$$100. The Federal Reserve System or the Fed. The cost of printing US bills as in 2021 ranges between \$$6 and$\14. The cost of printing varies with denomination.

100 cents make 1 dollar.