Unit 3 - Lesson 3 - Grade 3: Illustrative Mathematics

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11 questions

Note from the author:

Grade 3 Unit 3
Lesson 3: Add Your Way
CC BY 2021 Illustrative Mathematics®

Instructions

Grade 3 Unit 3
Lesson 3: Add Your Way
CC BY 2021 Illustrative Mathematics®

Lesson: Add Your Way

Number Talk: Hundreds, Tens, and Ones (Warm Up)

Find the value of each expression mentally.

200 + 40 + 7

50 + 300 + 2

40 + 600 + 12

Strategies to Add

Find the value of each sum in any way that makes sense to you. Explain or show your reasoning.

325 + 102

301 + 52

Two Ways to Add

Andre found the value of 276 + 118. His work is shown.

Clare found the value of 276 + 118. Her work is shown.

With your partner, discuss:

What’s different about Clare and Andre’s work?

With your partner, discuss:

What’s the same?

Cool Down: Add It Up

Unit 3 - Lesson 3 - Grade 3: Illustrative Mathematics

Unit 3 - Lesson 3 - Grade 3: Illustrative Mathematics

Number Talk: Hundreds, Tens, and Ones (Warm Up)

200 + 40 + 7

50 + 300 + 2

40 + 600 + 12

Strategies to Add

325 + 102

301 + 52

Two Ways to Add

With your partner, discuss:

What’s different about Clare and Andre’s work?

With your partner, discuss:

What’s the same?

Find the value of 258 + 217. Explain or show your reasoning.

Number Talk: Hundreds, Tens, and Ones (Warm Up)

200 + 40 + 7

50 + 300 + 2

40 + 600 + 12

500 + 17 + 130

Strategies to Add

325 + 102

301 + 52

276 + 118

298 + 305

Two Ways to Add

With your partner, discuss:

What’s different about Clare and Andre’s work?

With your partner, discuss:

What’s the same?

Find the value of 258 + 217. Explain or show your reasoning.

500 + 17 + 130

276 + 118

298 + 305

Unit 3 - Lesson 3 - Grade 3: Illustrative Mathematics

Unit 3 - Lesson 3 - Grade 3: Illustrative Mathematics

Number Talk: Hundreds, Tens, and Ones (Warm Up)

200 + 40 + 7

50 + 300 + 2

40 + 600 + 12

Strategies to Add

325 + 102

301 + 52

Two Ways to Add

With your partner, discuss:What’s different about Clare and Andre’s work?

With your partner, discuss:What’s the same?

Find the value of 258 + 217. Explain or show your reasoning.

Number Talk: Hundreds, Tens, and Ones (Warm Up)

200 + 40 + 7

50 + 300 + 2

40 + 600 + 12

500 + 17 + 130

Strategies to Add

325 + 102

301 + 52

276 + 118

298 + 305

Two Ways to Add

With your partner, discuss:What’s different about Clare and Andre’s work?

With your partner, discuss:What’s the same?

Find the value of 258 + 217. Explain or show your reasoning.

500 + 17 + 130

276 + 118

298 + 305

With your partner, discuss:

What’s different about Clare and Andre’s work?

With your partner, discuss:

What’s the same?

With your partner, discuss:

What’s different about Clare and Andre’s work?

With your partner, discuss:

What’s the same?