Common Core Math
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Common Core Math/Common Core Math - Grade 1
Number and Operations in Base Ten(nbt)/Use place value understanding and properties of operations to add and subtract(nbt-c)
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Learning Goal

Part of: Use place value understanding and properties of operations to add and subtract — 2 of 3 cluster items

Given a two-digit number, mentally find 10 more or 10 less than the number

Slides

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Slides

In development

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Common Core Mathematics