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1.OA.8 (Mathematics)


Standard Identifier: 1.OA.8
Content Area: Mathematics
Grade: 1
Domain: Operations and Algebraic Thinking

Cluster:
Work with addition and subtraction equations.

Standard:
Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 =  – 3, 6 + 6 = .

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