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K-5 Grade 5 Unit 5 Lesson 18

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Lesson 18

Warm-up Activity 1 Activity 2

Unit 5, Lesson 18

Use Whole Number Facts

Grade 5

Warm-up

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

Activity 1

Decide if each equation is true or false. Explain or show your reasoning.
Fill in the blank to make each equation true.

Activity 2

Three diagrams. Each squares. Length and width, 1. Each partitioned into 10 rows of 10 of the same size squares. 12 squares shaded in each diagram.

Explain or show how the diagram represents each expression.
Find the value of . Explain or show your reasoning.
Find the value of . Explain or show your reasoning.