Subtraction is not Commutative
Massachusetts Curriculum Frameworks. Commutative means you can switch around the numbers you are using without changing the result. Addition is commutative. Subtraction, however, is not commutative. Read More...
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◂Math Worksheets and Study Guides Second Grade. Subtraction is not Commutative
Study Guide
Subtraction is not CommutativeWorksheet/Answer key
Subtraction is not CommutativeWorksheet/Answer key
Subtraction is not CommutativeWorksheet/Answer key
Subtraction is not CommutativeVocabulary/Answer key
Subtraction is not Commutative
The resources above correspond to the standards listed below:
Massachusetts Curriculum Frameworks
MA.2.OA. Operations and Algebraic Thinking
2.OA.B. Add and subtract within 20.
2.OA.B.2. Fluently add and subtract within 20 using mental strategies. By end of grade 2, know from memory all sums of two single-digit numbers and related differences. For example, the sum 6 + 5 = 11 has related differences of 11 – 5 = 6 and 11 – 6 = 5.
Standards
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