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Unit 2 - Lesson 10 - Grade 5: Illustrative Mathematics

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Grade 5 Unit 2

Lesson 10: Fractional Side Lengths Less Than 1

CC BY 2021 Illustrative Mathematics®

Grade 5 Unit 2

Lesson 10: Fractional Side Lengths Less Than 1

CC BY 2021 Illustrative Mathematics®

Lesson: Fractional Side Lengths Less Than 1

Estimation Exploration: What is the Area? (Warm Up)

1

Rectangle With a Fractional Side Length

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1
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1

What Are the Side Lengths?

1
Cool Down: A Fractional Side Length
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1
Pitanje 1
1.

What is the area of the shaded region?

Record an estimate that is:

Pitanje 2
2.

Write a multiplication expression to represent the area of each shaded region. Then find the area.

Pitanje 3
3.

Find the area of the shaded region.

Pitanje 4
4.

Write a multiplication expression to represent the area of each shaded region.

Pitanje 5
5.

Find the area of the shaded region.

Pitanje 6
6.

Write a multiplication expression to represent the area of each shaded region. Then find the area.

Pitanje 7
7.

Find the area of the shaded region.

Pitanje 8
8.

Write a multiplication expression to represent the area of the shaded region. What is the area?

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1
1
1
1
1
1
1
1
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1
Pitanje 23
23.

Write a multiplication expression to represent the area of the shaded region.

Pitanje 24
24.

Find the area of the shaded region.

Here are two diagrams. Consider each expression and decide whether it represents the shaded region in one of the diagrams. Be prepared to share your thinking.

Pitanje 9
9.

Pitanje 10
10.

Share your thinking.

Pitanje 11
11.

Pitanje 12
12.

Share your thinking.

Pitanje 13
13.

Pitanje 14
14.

Share your thinking.

Pitanje 15
15.

Pitanje 16
16.

Share your thinking.

Pitanje 17
17.

Pitanje 18
18.

Share your thinking.

Pitanje 19
19.

Pitanje 20
20.

Share your thinking.

Pitanje 21
21.

What is the area for diagram X?

Pitanje 22
22.

What is the area for diagram Y?