Unit 2 - Lesson 5 - Grade 2: Illustrative Mathematics

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9 questions
Note from the author:
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.

1

Find the value of each expression mentally.

1

Find the value of each expression mentally.

1

Find the value of each expression mentally.

How Do You Find the Value?

1

Find the value of 82 - 9.

Show your thinking. Use blocks if it helps.

Subtract with Base-ten Blocks

1

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

How many does he have?

1

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.

1

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
1

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