2.NBT.B.9 Workbooks
CCSS.MATH.CONTENT.2.NBT.B.9
:"Explain why addition and subtraction strategies work, using place value and the properties of operations."
Workbooks
No workbooks found for this common core code.
See all worksheets, workbooks, and
games for CCSS.MATH.CONTENT.2.NBT.B.9.
