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Unit 8 - Lesson 2 - Grade 5: Illustrative Mathematics

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Grade 5 Unit 8
Lesson 2: More Multiplication
CC BY 2021 Illustrative Mathematics®
Grade 5 Unit 8
Lesson 2: More Multiplication
CC BY 2021 Illustrative Mathematics®
Lesson: More Multiplication

Estimation Exploration: Large Product (Warm Up)

9,999 x 896

Record an estimate that is:

Kiran’s Work

Find the value of the product.

Below is Kiran’s work finding the value of the product 650 x 27. Is his answer reasonable? Explain your reasoning.

What parts of the work do you agree with? Be prepared to explain your reasoning.

What parts of the work do you disagree with? Be prepared to explain your reasoning.

Look at your solution to problem 3. Is there anything you want to revise? Be prepared to explain.

Zero the Hero

Find the value of each product.

Cool Down: What is Important?

What is important to remember when using the standard algorithm to multiply large numbers?