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Unit 3 - Lesson 3 - Grade 3: Illustrative Mathematics
By Formative Library
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Instructions
Lesson: Add Your Way
Cool Down: Add It Up
1
Grade 3 Unit 3
Lesson 3: Add Your Way
CC BY 2021 Illustrative Mathematics®
Grade 3 Unit 3
Lesson 3: Add Your Way
CC BY 2021 Illustrative Mathematics®
Number Talk: Hundreds, Tens, and Ones (Warm Up)
Find the value of each expression mentally.
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Strategies to Add
Find the value of each sum in any way that makes sense to you. Explain or show your reasoning.
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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.
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Question 11
11.
Find the value of 258 + 217. Explain or show your reasoning.
visibility
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Question 1
1.
200 + 40 + 7
Question 2
2.
50 + 300 + 2
Question 3
3.
40 + 600 + 12
Question 4
4.
500 + 17 + 130
Question 5
5.
325 + 102
visibility
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Question 6
6.
301 + 52
visibility
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Question 7
7.
276 + 118
visibility
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Question 8
8.
298 + 305
visibility
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Question 9
9.
With your partner, discuss:
What’s different about Clare and Andre’s work?
Question 10
10.
With your partner, discuss:
What’s the same?