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2.NBT.9 (Mathematics)


Standard Identifier: 2.NBT.9
Content Area: Mathematics
Grade: 2
Domain: Number and Operations in Base Ten

Cluster:
Use place value understanding and properties of operations to add and subtract.

Standard:
Explain why addition and subtraction strategies work, using place value and the properties of operations.

Footnote:
Explanations may be supported by drawings or objects.

Questions: Curriculum Frameworks and Instructional Resources Division | CFIRD@cde.ca.gov | 916-319-0881