HOMESCHOOL AND DISTANCE LEARNING
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GETTING STARTED

Common Core Alignment

CCSS.Math.Content.2.NBT.9 - Explain why addition and subtraction strategies work, using place value and the properties of operations.3

5: Math

Unit 2: Addition and Subtraction/Fact Power!
Lesson 2: So Many More Ways to Add
Lesson 4: Time to Subtract!