Coin Addition

Riley is excited to go to her school store today.
Riley will use pennies, nickels, and dimes to buy the items she wants.
A penny is worth 1 cent. A nickel is worth 5 cents. A dime is worth 10 cents.
Let’s help Riley with the first item she wants to buy. She wants this eraser.
The tag on the eraser says it costs 4 cents. What coins can we use to buy the eraser?
The dime and nickel are worth too much. We will use pennies!
4 pennies makes 4 cents! 1, 2, 3, 4. Riley will use 4 pennies to buy the eraser.
Now Riley wants to buy this pencil sharpener. It costs 7 cents!
We could use 7 pennies to buy the sharpener, but let’s try a bigger coin. Can we use a dime?
No, a dime is worth 10 cents. That’s too much! We need to use a nickel.
A nickel is worth 5 cents. We still need 2 more cents. We can use 2 pennies for that!
5, 6, 7.
1 nickel and 2 pennies makes 7 cents. Now Riley can buy the pencil sharpener!
Riley sees a pair of scissors! It costs 12 cents! Think about what coins we can use.
Let’s use 2 nickels. 5, 10. There are 2 cents left.
We should use 2 pennies!
5, 10, 11, 12.
2 nickels and 2 pennies is 12 cents.
We can also use 1 dime and 2 pennies to make 12 cents.
Riley can buy the pair of scissors!
Riley wants one more thing. This calculator! It costs 49 cents.
What coins can we use to buy the calculator?
Let’s use 3 dimes! 10, 20, 30. Now there are 19 cents left. What coins can we use now?
How about 3 nickels? 35, 40, 45. How many cents are left?
4 cents! We can use 4 pennies for that.
10, 20, 30, 35, 40, 45, 46, 47, 48, 49.
3 dimes, 3 nickels, and 4 pennies make 49 cents. Riley can buy the calculator!
Riley was able to buy all of the items she wanted from the school store using dimes, nickels, and pennies. You did a great job helping her add coins!