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US currency & money basics

Grade 3 · Social Studies · Free lesson

Hi there! Let's learn about US money. We will count coins and bills together!

Money helps us buy things. We use paper bills and metal coins. Each coin has its own value.

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We can add coins together. A dime is worth 10 cents. A nickel is worth 5 cents. Together, they make 15 cents.

10¢ + = 15¢

We can subtract to find change. If you pay 20 cents for a 15 cent toy, you get 5 cents back.

20¢ Your Change

We can use multiplication for groups of money. If you have 3 dimes, you have 3 groups of 10 cents. That is 30 cents in total.

✏️ Worked example

Sam has 4 nickels. He buys a sticker for 12 cents. How much money does Sam have left?

  1. First, find how much money Sam has. A nickel is worth 5 cents.
  2. Multiply 4 nickels by 5 cents. 4 times 5 is 20 cents.
  3. Next, subtract the cost of the sticker. The sticker costs 12 cents.
  4. Subtract 12 from 20. 20 minus 12 is 8.
  5. Sam has 8 cents left!
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