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Unit 5 - Lesson 1 - Grade 2: Illustrative Mathematics

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Last updated 11 months ago
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Grade 2 Unit 5
Lesson 1: How Do We Compose a Hundred?
CC BY 2021 Illustrative Mathematics®
Grade 2 Unit 5
Lesson 1: How Do We Compose a Hundred?
CC BY 2021 Illustrative Mathematics®
Lesson: How Do We Compose a Hundred?
1
1
Cool Down: Fewer Blocks

How Do We Make a Hundred?

Question 1
1.

How many do you see? How do you see them?

Andre added more blocks.

1
Question 2
2.

What is the value of Andre’s blocks now?

1
Question 3
3.

How many tens and ones are in this number?

Question 4
4.

Andre made the same number with the fewest amount of blocks possible. Draw a base-ten diagram to show what Andre’s number looks like now. Use your base-ten blocks to help.

Different Ways to See 100

Three students were looking at 100 small squares arranged like this:

1
Question 5
5.

Match the diagrams to the statements. Label each diagram with A, B, or C. Be prepared to explain your matches.

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Question 6
6.

Represent with blocks or a diagram.

Andre represented a number with base-ten blocks.

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Question 7
7.

What number did Andre represent?

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Question 8
8.

How could he represent this number with fewer blocks? Show your thinking with words or a base-ten diagram.