Work with addition and subtraction.
Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. (1.OA.8)
More information and the complete College and Career Readiness Standards can be found here.
Work with addition and subtraction.
Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. (1.OA.8)
More information and the complete College and Career Readiness Standards can be found here.