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Unit 5 - Lesson 21 - Grade 5: Illustrative Mathematics

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10 Questions
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Grade 5 Unit 5
Lesson 21: Multiply More Decimals
CC BY 2021 Illustrative Mathematics
Grade 5 Unit 5
Lesson 21: Multiply More Decimals
CC BY 2021 Illustrative Mathematics
Lesson: Multiply More Decimals

Estimation Exploration: Central Park (Warm Up)

1.

Central Park is a large park in Manhattan. It is about 3.85 kilometers long and 0.79 km wide. What is the area of Central Park?


Record an estimate that is:

Multiply More Decimals

2.

Explain or show why this pair of expressions are equivalent.

3.

Explain or show why this pair of expressions are equivalent.

4.

Explain or show why this pair of expressions are equivalent.

5.

Find the value of the products in the previous problem.

Choose Your Strategy

6.

Find the value of the product.

7.

Find the value of the product.

8.

Find the value of the product.

Cool Down: Explain Why Expressions are Equal
9.

Explain why 2.5 x 6.4 and (25 x 64) x 0.01 are equal.


10.

Find the value of 2.5 x 6.4.