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K-5 Grade 5 Unit 5 Lesson 23

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•K-5 Math 6-8 Math 9-12 Math

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Lesson 23

Warm-up Activity 1 Activity 2

Unit 5, Lesson 23

Divide Whole Numbers by Decimals

Grade 5

Warm-up

True or False: Tenths and Hundredths

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

Activity 1

Same Divisor, Different Dividend

Find the value of each expression. Explain or show your reasoning.
Find the value of each expression. Explain or show your reasoning.
What patterns do you notice?

Activity 2

Strategies with Larger Dividends

Find the value of the expression. Explain or show your reasoning. Use a diagram if it is helpful.
Tyler uses this diagram and explanation to justify why .

Diagram. Square. Partitioned into 10 rows of 10 of the same size squares. 1 hundred squares shaded. For each 20 squares shading alternates, blue, orange.

Explain how the expression relates to Tyler's reasoning.
Find the value of each expression.

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