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Math >> Money and Finance

Money Math

Counting Money

Counting money is an important skill you will use in everyday life. You will need to know how much the different coins and bills are worth and how to add.

Dollars and Cents

The first thing to know is that money is counted in dollars and cents. One cent is equal to 1/100th of a dollar. In other words, each dollar is worth 100 cents.

Value of Coins

Here are the most used United States coins you need to know for counting money. These coins are all counted in cents.
1 cent
5 cents
10 cents
25 cents
Value of Bills

Bills are counted in dollars. Here are the most used bills you need to know for counting money:
1 dollar bill
5 dollar bill
10 dollar bill
20 dollar bill
Adding Coins

When you add coins you add the cents. Every 100 cents is 1 dollar. So if you get more than 100 cents that becomes a dollar. For example, if the coins add up to 115 cents, that is called 1 dollar and 15 cents. If they add up to 345 cents, that is called 3 dollars and 45 cents.

Example Problem 1

Count the following coins:

Answer: There are 2 quarters, 1 nickel, and 2 pennies. This is 25 + 25 + 5 + 2 = 57 cents.

Example Problem 2

Count the following coins:

Answer: There are 3 quarters, 6 dimes, 2 nickels, and 2 pennies. This is 75 + 60 + 10 + 2 = 147 cents = 1 dollar and 47 cents = $1.47

Adding Bills

When you add bills together you do it in dollars. Adding bills is pretty easy. A good way to add bills is to add the larger bills first, then the smaller ones. You can count them out this way. For example, if you had two $20 bills, three $10 bills, and four $1 bills you would start with the twenties and keep adding them together like so: 20, 40, 50, 60, 70, 71, 72, 73, 74. The total is $74.

Example Problem 3

Count the following bills:

Answer: Adding up the value of the bills gives you 20 + 10 + 5 + 5 + 1 + 1 = $42

Adding Coins and Bills

When adding coins and bills, it is usually easier to 1) add up all the coins, 2) add up the bills, and finally, 3) add the two totals together.

Example Problem 4

Count the following bills and coins:


First count the change of 3 quarters and four dimes which equals = 75 + 40 = 115 cents = 1 dollar and 15 cents.

Next count the bills which equals = 10 + 5 + 1 = 16 dollars

Now add them together 1 dollar + 16 dollars + 15 cents = 17 dollars and 15 cents = $17.15

Example Problem 5

Count the following bills and coins:


First count the change of 2 quarters, four dimes, and 3 nickels which = 50 + 40 + 15 = 105 cents = 1 dollar and 5 cents = $1.05

Next count the bills which equals = 20 + 10 = 30 dollars = $30

Now add them together = 30 dollars + 1 dollar + 5 cents = 31 dollars and 5 cents = $31.05

Learn More about Money and Finance:

Personal Finance

Filling out a Check
Managing a Checkbook
How to Save
Credit Cards
How a Mortgage Works
How Interest Works
Insurance Basics
Identity Theft

About Money

History of Money
How Coins are Made
How Paper Money is Made
Counterfeit Money
United States Currency
World Currencies
Money Math

Counting Money
Making Change
Basic Money Math
Money Word Problems: Addition and Subtraction
Money Word Problems: Multiplication and Addition
Money Word Problems: Interest and Percent


How Banks Work
How the Stock Market Works
Supply and Demand
Supply and Demand Examples
Economic Cycle
Adam Smith
How Taxes Work
Glossary and Terms

Note: This information is not to be used for individual legal, tax, or investment advice. You should always contact a professional financial or tax advisor before making financial decisions.
Math >> Money and Finance

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