D. Calculator Counting with 10s
Work with a partner to find how long it will take to count to 500. One partner will count. The other will time how long the counting takes.
- Predict how long it will take to count by 10s to 500. Use a calculator to count by 10s to 500. How long did it take?
- Predict how long it will take to count backward by 10s from 500 to 0. Use a calculator to help you count. Was your prediction close? Explain why or why not.