Standards
CCSS.Math.Content.2.NBT.B Use place value understanding and properties of operations to add and subtract.
- CCSS.Math.Content.2.NBT.B.5
- CCSS.Math.Content.2.NBT.B.6
- CCSS.Math.Content.2.NBT.B.7
- CCSS.Math.Content.2.NBT.B.8
- CCSS.Math.Content.2.NBT.B.9