## 10% More

**Work Time**

# 10% More

Huey, Dewey, and Louie see lemonade crystals at the store. Next to the regular size is a “bonus box.”

Huey says: "The '10% more' statement on the bonus box is NOT accurate. There is really more than 10% more."

Dewey says: "The '10% more' statement is NOT accurate. There is actually only 5% more, since 50 − 45 = 5."

Louie says: "The '10% more' statement IS accurate, since 10% of 50 is 5."

Only one of the boys is correct.

- Decide who is correct and show, mathematically, why he is correct.
- Say what mistakes you think each of the other two boys made.