Unit 4, Lesson 22, Grade 5 icon
Unit 4, Lesson 22

Compare the size of the product to the size of the factors.

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In this lesson, students begin extending their understanding of multiplication to include scaling. They reason about the size of products when quantities are multiplied by 1, by numbers larger than 1, and numbers smaller than 1. For example, 4/4 x 12 inches is the same length, while 3/4 x 12 inches is a shorter length, and 5/4 x 12 inches is a longer length.

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