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Unit 2 - Lesson 5 - Grade 2: Illustrative Mathematics
By Formative Library
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Instructions
Lesson: Subtract Your Way
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Cool Down: Find the Difference
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Grade 2 Unit 2
Lesson 5: Subtract Your Way
CC BY 2021 Illustrative Mathematics
Grade 2 Unit 2
Lesson 5: Subtract Your Way
CC BY 2021 Illustrative Mathematics
Number Talk: Subtract a Little More (Warm Up)
Question 1
1.
Find the value of each expression mentally.
Question 2
2.
Find the value of each expression mentally.
Question 3
3.
Find the value of each expression mentally.
Question 4
4.
Find the value of each expression mentally.
How Do You Find the Value?
Question 5
5.
Find the value of 82 - 9.
Show your thinking. Use blocks if it helps.
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Subtract with Base-ten Blocks
Question 6
6.
Diego started with 5 tens and 5 ones. Represent Diego’s blocks with the base-ten blocks.
How many does he have?
visibility
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Question 7
7.
Diego took away 2 tens.
Draw a representation to show what happened to Diego’s blocks.
Write an equation to show how many Diego has now.
visibility
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Question 8
8.
Then, Diego took away 8 ones.
Draw a diagram to show what happened to Diego’s blocks.
Write an equation to show how many Diego has now. Be prepared to explain your reasoning.
visibility
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Question 9
9.
Find the value of 75 - 9. Show your thinking.
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