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Standards/Math/Puerto Rico/1.OA.D

1.OA.D

1.OA Operations and Algebraic Thinking
1.OA.A
1.OA.B
1.OA.C
1.OA.D
1.OA.D.71.OA.D.8

Work with addition and subtraction equations.

1.OA.D.7Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.1.OA.D.8Determine the unknown whole number in an addition or subtraction equation relating three whole numbers.
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