Unit 5 - Lesson 17 - Grade 5: Illustrative Mathematics - Formative Library | Library

Instructions

Grade 5 Unit 5
Lesson 17: Multiply Decimals and Whole Numbers
CC BY 2021 Illustrative Mathematics

True or False: Place Value Products (Warm Up)

Decide if each statement is true or false. Be prepared to explain your reasoning.

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Explain your reasoning.

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Explain your reasoning.

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Multiply Decimals By Whole Numbers

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Find the value of the expression in a way that makes sense to you. Explain or show your reasoning. Use the grids, if needed.

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Find the value of the expression in a way that makes sense to you. Explain or show your reasoning. Use the grids, if needed.

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Find the value of the expression in a way that makes sense to you. Explain or show your reasoning. Use the grids, if needed.

Using Whole Number Products

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Find the value of the expression. Explain or show your reasoning.

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Find the value of the expression. Explain or show your reasoning.

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Find the value of the expression. Explain or show your reasoning.

Kiran wrote this explanation to describe the strategy he used to multiply a whole number by some tenths:

“I just turn the numbers into whole numbers, multiply them, and call them tenths.” 

(Pause for teacher directions.)

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Can you use Kiran’s reasoning to find the value of 6 x 0.07? Explain your reasoning.

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Find the value of the expression. Explain or show your reasoning.

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