Question

What is an example of a commutative property

A. -(-8 + 3) = 8 + (-3)

B. -13 + 27 = 27 + (-13)

C. 4(-3+5) = 4(-3) + 4 x 5

D. -21 + (11 + 13) = (-21 +11) + 13

Answer 1

B

Explanation:

additions and multiplications have the commutative property.

that means the sequence of the operands of the operation does not matter.

a + b = b + a

a×b = b×a

but it does not apply to subtractions and divisions.

a - b is in most cases very different from b - a

and the same for a/b : very different from b/a

Answer 2

B. -13 + 27 = 27 + (-13)

Explanation:

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