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Unit 3 - Lesson 7 - Grade 3: Illustrative Mathematics

Last updated 9 months ago
14 questions
Note from the author:
Grade 3 Unit 3
Lesson 7: Subtract Your Way
CC BY 2021 Illustrative Mathematics®
Grade 3 Unit 3
Lesson 7: Subtract Your Way
CC BY 2021 Illustrative Mathematics®
Lesson: Subtract Your Way

Number Talk: Subtract Two-Digit Numbers (Warm Up)

Find the value of each expression mentally.
1

50 - 10

1

58 - 10

1

258 - 20

1

258 - 24

Strategies to Subtract

1

Find the value of each difference in any way that makes sense to you.

Explain or show your reasoning.

428 - 213

1

Find the value of each difference in any way that makes sense to you.

Explain or show your reasoning.

505 - 398

1

Find the value of each difference in any way that makes sense to you.

Explain or show your reasoning.

394 - 127

Base-ten Drawings

Jada and Han made drawings to show how they used base-ten blocks to find the value of 262 - 135.

Their drawings are shown.


1

How are their drawings alike?

1

How are their drawings different?

1

Here are three expressions, followed by three diagrams. Match each expression to the diagram that represents it.

Draggable itemCorresponding Item
252 - 181
262 - 135
252 - 132
1

Find the value of the expression.

252 - 181

1

Find the value of the expression.

262 - 135

1

Find the value of the expression.

252 - 132

Cool Down: Subtract within 1,000
1

Find the value of 372 - 158. Explain or show your reasoning.