According to the study unit, the commutative property means a. the way the numbers are grouped does affect the sum. b. the order in which you add the numbers does affect the sum. c. the order in which you add the numbers doesn't affect the sum. d. the way the numbers are grouped doesn't affect the sum

C. the order in which you add the numbers doesn't affect the sum.

Step-by-step explanation:

The Commutative Property for sum states that the order in which we add the numbers doesn't affect the sum of numbers. i.e.

(a + b) + c = a + (b + c)

Example, (5 + 4) + 2 = 9 + 2 = 11

5 + (4 + 2) = 5 + 6 = 11

Hence, Option C is only correct answer.

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