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Grade 2 Unit 7

Lesson 7: Compose a Larger Unit

CC BY 2021 Illustrative Mathematics®

How Many Do You See: Are They the Same? (Warm Up)

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1

How many do you see?

1

How do you see them?

Compose a Ten or a Hundred

Find the value of each expression. Show your thinking. Use base-ten blocks if it helps.

1

Compare your thinking with your partner.

Walk About and Add

Directions:

Find a partner and record your numbers to make an expression.
Discuss if you think you would need to compose a ten or a hundred when adding your numbers.
Find the value of the sum. Show your thinking.

Trial 1

1

Will you need to compose a ten?

Yes

No

1

Will you need to compose a hundred?

Yes

No

1

Trial 2

1

Will you need to compose a ten?

Yes

No

1

Will you need to compose a hundred?

Yes

No

1

Trial 3

1

Will you need to compose a ten?

Yes

No

1

Will you need to compose a hundred?

Yes

No

1

Unit 7 - Lesson 7 - Grade 2: Illustrative Mathematics

How Many Do You See: Are They the Same? (Warm Up)

Compose a Ten or a Hundred

Walk About and Add

Unit 7 - Lesson 7 - Grade 2: Illustrative Mathematics

How Many Do You See: Are They the Same? (Warm Up)

How many do you see?

How do you see them?

Compose a Ten or a Hundred

Walk About and Add

Trial 1

Will you need to compose a ten?

Will you need to compose a hundred?

Trial 2

Will you need to compose a ten?

Will you need to compose a hundred?

Trial 3

Will you need to compose a ten?

Will you need to compose a hundred?

Find the value of 354 + 75.
Show your thinking. Use base-ten blocks if it helps.

How many do you see?

How do you see them?

Trial 1

Will you need to compose a ten?

Will you need to compose a hundred?

Find the value of the sum. Show your thinking.

Trial 2

Will you need to compose a ten?

Will you need to compose a hundred?

Find the value of the sum. Show your thinking.

Trial 3

Will you need to compose a ten?

Will you need to compose a hundred?

Find the value of the sum. Show your thinking.

Find the value of 354 + 75.
Show your thinking. Use base-ten blocks if it helps.

Find the value of the sum. Show your thinking.

Find the value of the sum. Show your thinking.

Find the value of the sum. Show your thinking.

Unit 7 - Lesson 7 - Grade 2: Illustrative Mathematics

How Many Do You See: Are They the Same? (Warm Up)

Compose a Ten or a Hundred

Walk About and Add

Unit 7 - Lesson 7 - Grade 2: Illustrative Mathematics

How Many Do You See: Are They the Same? (Warm Up)

How many do you see?

How do you see them?

Compose a Ten or a Hundred

Walk About and Add

Trial 1

Will you need to compose a ten?

Will you need to compose a hundred?

Trial 2

Will you need to compose a ten?

Will you need to compose a hundred?

Trial 3

Will you need to compose a ten?

Will you need to compose a hundred?

Find the value of 354 + 75.Show your thinking. Use base-ten blocks if it helps.

How many do you see?

How do you see them?

Trial 1

Will you need to compose a ten?

Will you need to compose a hundred?

Find the value of the sum. Show your thinking.

Trial 2

Will you need to compose a ten?

Will you need to compose a hundred?

Find the value of the sum. Show your thinking.

Trial 3

Will you need to compose a ten?

Will you need to compose a hundred?

Find the value of the sum. Show your thinking.

Find the value of 354 + 75.Show your thinking. Use base-ten blocks if it helps.

Find the value of the sum. Show your thinking.

Find the value of the sum. Show your thinking.

Find the value of the sum. Show your thinking.

Find the value of 354 + 75.
Show your thinking. Use base-ten blocks if it helps.

Find the value of 354 + 75.
Show your thinking. Use base-ten blocks if it helps.