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Unit 4 - Lesson 2 - Grade 5: Illustrative Mathematics

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Grade 5 Unit 4
Lesson 2: Partial Products in Diagrams
CC BY 2021 Illustrative Mathematics®
Grade 5 Unit 4
Lesson 2: Partial Products in Diagrams
CC BY 2021 Illustrative Mathematics®
Lesson: Partial Products in Diagrams

Which One Doesn't Belong: Diagrams to Find Products (Warm Up)

Which one doesn't belong?

Decompose in Many Ways

Write the value of each product inside the rectangles.

Find the value of 42 x 33.

This diagram represents 142 x 33.


Write the value of each product inside the rectangles.

Find the value of 142 x 33.

Calculate in Many Ways

Here are some different diagrams that represent 315 x 24. For each diagram, write a multiplication expression inside each rectangle to represent the product.

Use one of the diagrams to find the value of 315 x 24.

Explain why you chose that diagram to find the product.

Cool Down: 222 x 14

Here is a diagram that represents 222 x 14.


Find the value of 222 x 14. Use the diagram if it is helpful. Explain or show your reasoning.