Unit 9 - Lesson 8 - Grade 2: Illustrative Mathematics
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9 questions
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Grade 2 Unit 9
Lesson 8: Add and Subtract Within 100
CC BY 2021 Illustrative Mathematics®
Grade 2 Unit 9
Lesson 8: Add and Subtract Within 100
CC BY 2021 Illustrative Mathematics®
Lesson: Add and Subtract Within 100
Find the value of each expression mentally.
1
9 + 5
9 + 5
1
20 + 30
20 + 30
1
29 + 35
29 + 35
1
229 + 435
229 + 435
Write an equation that shows the value you found for each round you play.
1
Round 1:
Round 1:
1
Round 2:
Round 2:
1
Round 3:
Round 3:
Five in a Row
Target Numbers
Cool Down: Practice for Fluency
1
How have you improved with adding and subtracting within 100?
How have you improved with adding and subtracting within 100?
1
What do you still want to work on?
What do you still want to work on?