Which mathematical property is demonstrated?

7 + 9 + 3 = 7 + 3 + 9

a.
associative property of addition

b.
associative property of multiplication

c.
commutative property of addition

d.
commutative property of multiplication

The best and most correct answer among the choices provided by your question is the third choice or letter C "commutative property of addition."

The word "commutative" comes from "commute" or "move around", so theCommutative Property is the one that refers to moving stuff around. For addition, the rule is "a + b = b + a"; in numbers, this means 2 + 3 = 3 + 2. For multiplication, the rule is "ab = ba"; in numbers, this means 2×3 = 3×2.

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