Instructional video

Solve addition problems with numbers up to 1,000: regrouping

teaches Common Core State Standards 3.NBT.A.2 http://corestandards.org/Math/Content/3/NBT/A/2

Solve addition problems with numbers up to 1,000: regrouping

In this lesson you will learn how to solve addition problems with numbers up to 1,000 by regrouping them.