Envision 4-8: Using Number Sense to Place Decimals

Envision 4-8: Using Number Sense to Place Decimals

Open Ended

Convince Me: Explain your reasoning.

Multiple Choice

Choose the reasonable product for 9.9 x 3.3 by using estimation.

• 0.3267

• 3.267

• 32.67

• 326.7

Multiple Choice

Choose the reasonable product for 8 x 6.02 by using estimation.

• 4.816

• 48.16

• 481.6

• 4,816

Multiple Choice

Choose the reasonable product for 3.14 x 0.7 by using estimation.

• 2,198

• 219.8

• 21.98

• 2.198

Complete the problems listed.

Open Ended

TOTD: Explain how you can use estimation to figure out where the decimal goes in the product. Use an example problem to help explain your reasoning.