Zoe needs to back up her music collection, but do her friends have enough space on their computers to help? Find out as you teach your class how to add two- and three-digit numbers with regrouping. Place value is emphasized as both the standard algorithm and partial sums method for addition are explained. Print out the step-by-step instructions to post in the classroom or provide to students who need additional support.

Concepts

addition carrying, addition, addition word problems, addition regrouping, addition strategies

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Additional Tags

addition with carrying, addition of multiple numbers, math

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Pros

• Includes multiple approaches to teaching addition with regrouping
• Assessment includes a variety of different addition problems
• Presentation allows teachers to move through the content at their own pace

Cons

• None

Common Core

2.NBT.B.6 2.NBT.B.7 3.NBT.A.2 4.NBT.B.4 MP4 MP7