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Unit 1 - Lesson 2 - Grade 2: Illustrative Mathematics

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Grade 2 Unit 1
Lesson 2: Relate Addition and Subtraction within 10
CC BY 2021 Illustrative Mathematics®
Grade 2 Unit 1
Lesson 2: Relate Addition and Subtraction within 10
CC BY 2021 Illustrative Mathematics®
Lesson: Relate Addition and Subtraction within 10

What Do You Know About 10? (Warm Up)

What do you know about 10?

Sums of 10

For each cube tower, write as many equations as you can think of that represent the cubes.

Write as many equations as you can think of that represent the cubes.

Write as many equations as you can think of that represent the cubes.

Write as many equations as you can think of that represent the cubes.

Write as many equations as you can think of that represent the cubes.

Write as many equations as you can think of that represent the cubes.

Find the number that makes each equation true.

Then write the letter of the cube tower that represents the equation.

3 +_______ = 10

Letter _______
10 - 7 = _______

Letter _______
10 - 5 = _______

Letter_______
2 + _______ = 10

Letter_______
10 - 1 = _______

Letter_______
10 - 2 = _______

Letter_______
_______ + 6 = 10

Letter_______
_______ + 9 = 10

Letter_______
5 + _______ = 10

Letter_______
10 - _______ = 4

Letter_______
Cool Down: Represent the Cubes

Circle the 2 equations that represent the cubes.