Access Point #: MA.1.AR.2.AP.3


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Determine the unknown whole number in an addition or subtraction equation, relating three whole numbers, with the result unknown (e.g., 8 − 2 = __, __ = 7 + 3). Sums may not exceed 10 and their related subtraction facts.
Number: MA.1.AR.2.AP.3 Category: Access Points
Date Adopted or Revised: 03/23 Standard: Develop an understanding of the relationship between addition and subtraction.

Related Benchmarks

Name Description
MA.1.AR.2.3: Determine the unknown whole number in an addition or subtraction equation, relating three whole numbers, with the unknown in any position.
Clarifications:
Clarification 1: Instruction begins the development of algebraic thinking skills where the symbolic representation of the unknown uses any symbol other than a letter.

Clarification 2: Problems include the unknown on either side of the equal sign.

Clarification 3: Addition and subtraction are limited to sums within 20 and related subtraction facts. Refer to Situations Involving Operations with Numbers (Appendix A).




Related Courses

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5012030: Grade One Mathematics
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