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


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Determine the unknown whole number in an addition or subtraction equation, relating three whole numbers, with the change or result unknown (e.g., 7 + __ = 10, 10 − 3= __). Sums may not exceed 20 and their related subtraction facts.
Number: MA.2.AR.2.AP.2 Category: Access Points
Date Adopted or Revised: 03/23 Standard: Demonstrate an understanding of equality and addition and subtraction.

Related Benchmarks

Name Description
MA.2.AR.2.2: Determine the unknown whole number in an addition or subtraction equation, relating three or four whole numbers, with the unknown in any position.
Clarifications:
Clarification 1: Instruction extends the development of algebraic thinking skills where the symbolic representation of the unknown uses any symbol other than a letter. 

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

Clarification 3: Addition and subtraction are limited to sums up to 100 and related differences. Refer to Situations Involving Operations with Numbers (Appendix A).




Related Courses

Name Description
5012040: Grade Two Mathematics
7712030: Access Mathematics Grade 2
5012005: Foundational Skills in Mathematics K-2