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Unit 5 - Lesson 2 - Grade 2: Illustrative Mathematics

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14 Questions
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Grade 2 Unit 5
Lesson 2: Make Hundreds
CC BY 2021 Illustrative Mathematics®
Grade 2 Unit 5
Lesson 2: Make Hundreds
CC BY 2021 Illustrative Mathematics®
Lesson: Make Hundreds

Make Hundreds

Build each number using base-ten blocks. Record how many tens blocks you use.
Build 90.

_______ tens
Build 110.

_______ tens
Build 150.

_______ tens
How many base-ten blocks would you need to build 200?

_______ tens
How many base-ten blocks would you need to build 300?

_______ tens
How many base-ten blocks would you need to build 300 if you could use 1 hundreds block?

1 hundred _______ tens
How many tens would you need to build 300 if you could use 2 hundreds blocks?

2 hundreds _______ tens
How many tens would you need to build 300 if you could use only hundreds blocks?

_______ hundreds _______ tens

How Many Hundreds?

Han and Jada represented the same number using base-ten blocks. They started base-ten diagrams, but ran out of time to finish them.


Use base-ten blocks to show what each student’s work would look like if they had time to finish it.

Explain how you know both ways of using base-ten blocks show 700.

Complete Jada’s base-ten diagram.

Explain why you think Han ran out of time to finish his diagram.

Cool Down: How Many?

How many do you see?

How could you represent the same value in a different way? Show your
thinking using a diagram or words.