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- CCSS.MATH.CONTENT.3.NBT.A.2 LESSONS
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Commmon Core Lessons - 3.NBT.A.2 Common Core
CCSS.Math.Content.3.NBT.A.2:
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
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