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®
How many do you see? How do you see them?
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Andre added more blocks.
What is the value of Andre’s blocks now?
How many tens and ones are in this number?
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.
Three students were looking at 100 small squares arranged like this:
Match the diagrams to the statements. Label each diagram with A, B, or C. Be prepared to explain your matches.
Represent with blocks or a diagram.
Andre represented a number with base-ten blocks.
What number did Andre represent?
How could he represent this number with fewer blocks? Show your thinking with words or a base-ten diagram.