Unit 3: Wrapping Up Addition and Subtraction within 1,000

Students use place-value understanding to round whole numbers and add and subtract within 1,000. They also represent and solve two-step word problems, using addition, subtraction, and multiplication, and assess the reasonableness of answers.

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Unit

Review the unit’s main ideas.

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Concept

Start with the core idea.

Set 1

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Set 2

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Practice

Build fluency with more questions.

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Set 2

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Advanced

Try more challenging problems.

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Set 3

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Set 4

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