Unit 3 - Lesson 7 - Grade 3: Illustrative Mathematics

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14 Questions
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Grade 3 Unit 3
Lesson 7: Subtract Your Way
CC BY 2021 Illustrative MathematicsĀ®
Grade 3 Unit 3
Lesson 7: Subtract Your Way
CC BY 2021 Illustrative MathematicsĀ®
Lesson: Subtract Your Way

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

Find the value of each expression mentally.

50 - 10

58 - 10

258 - 20

258 - 24

Strategies to Subtract

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

Explain or show your reasoning.

428 - 213

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

Explain or show your reasoning.

505 - 398

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.


How are their drawings alike?

How are their drawings different?

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

Find the value of the expression.

252 - 181

Find the value of the expression.

262 - 135

Find the value of the expression.

252 - 132

Cool Down: Subtract within 1,000

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