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Unit 2 - Lesson 5 - Grade 2: Illustrative Mathematics

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Last updated 2 months ago
9 Questions
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Grade 2 Unit 2
Lesson 5: Subtract Your Way
CC BY 2021 Illustrative Mathematics
Grade 2 Unit 2
Lesson 5: Subtract Your Way
CC BY 2021 Illustrative Mathematics
Lesson: Subtract Your Way

Number Talk: Subtract a Little More (Warm Up)

1.

Find the value of each expression mentally.

2.

Find the value of each expression mentally.

3.

Find the value of each expression mentally.

4.

Find the value of each expression mentally.

How Do You Find the Value?

5.

Find the value of 82 - 9.

Show your thinking. Use blocks if it helps.

Subtract with Base-ten Blocks

6.

Diego started with 5 tens and 5 ones. Represent Diego’s blocks with the base-ten blocks.

How many does he have?

7.

Diego took away 2 tens.

  • Draw a representation to show what happened to Diego’s blocks.
  • Write an equation to show how many Diego has now.

8.

Then, Diego took away 8 ones.

  • Draw a diagram to show what happened to Diego’s blocks.
  • Write an equation to show how many Diego has now. Be prepared to explain your reasoning.

Cool Down: Find the Difference
9.

Find the value of 75 - 9. Show your thinking.