This file contains activities to practice the CC1.NBT.C.4/1.NBT.C.6. These pages include 25 printable activity sheets to practice addition and subtraction with two digit numbers. These printable activity sheets have students show their work using place value blocks, ten frames, and number lines. They can be used as guided practice, independent practice and Math Centers. This file does not contain any regrouping as CC does not expect that skill to be introduced in first grade.
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