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Unit 9 - Lesson 7 - Grade 2: Illustrative Mathematics

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21 Questions
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Grade 2 Unit 9
Lesson 7: Add and Subtract Within 1,000
CC BY 2021 Illustrative Mathematics®
Grade 2 Unit 9
Lesson 7: Add and Subtract Within 1,000
CC BY 2021 Illustrative Mathematics®
Lesson: Add and Subtract Within 1,000

Which One Doesn’t Belong: Add and Subtract Within 100 (Warm Up)

Which one doesn’t belong?

Which Would You Rather Find?

Circle 2 sums or differences you think would be the most challenging to find.

Find the value of one of these expressions. Show your thinking.

Choose 2 other expressions and find the values. Show your thinking.

Add and Subtract within 100

Find the value of each expression.

31 + 25

43 + 28

89 - 22

40 - 28

15 + 72

85 - 37

95 - 81

37 + 55

25 + 25

63 - 19

72 - 68

21 + 59

Choose one value that you think was less challenging to find. Explain.

Choose one value that you think was more challenging to find. Explain.

Cool Down: Add and Subtract Within 1,000
Find the value of each expression.

84 - 22

504 + 183

56 + 27

Which value was the most challenging to find? Explain.