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Unit 7 - Lesson 8 - Grade 2: Illustrative Mathematics
By Formative Library
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Lesson: Compose Tens and Hundreds to Add
Cool Down: Make Tens and Hundreds
1
Grade 2 Unit 7
Lesson 8: Compose Tens and Hundreds to Add
CC BY 2021 Illustrative Mathematics®
Grade 2 Unit 7
Lesson 8: Compose Tens and Hundreds to Add
CC BY 2021 Illustrative Mathematics®
How Many Do You See: Too Many Tens (Warm Up)
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Compare the Sums
Find the value of each sum. Show your thinking. Use base-ten blocks if it helps.
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Different Ways to Show Your Thinking
Priya and Lin were asked to find the value of 358 + 67.
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Question 9
9.
Find the value of 278 + 65.
Show your thinking. Use base-ten blocks if it helps you.
visibility
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Question 1
1.
How many do you see?
Question 2
2.
How do you see them?
Question 3
3.
273 + 18
visibility
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Question 4
4.
273 + 81
visibility
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Question 5
5.
273 + 88
visibility
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Question 6
6.
What was the same and different about the sums?
Question 7
7.
What do you notice about their work?
What is the same and different about their representations?
Be prepared to explain your thinking.
visibility
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Question 8
8.
Find the value of 546 + 86.
Show your thinking. Use base-ten blocks if it helps.
visibility
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