

MCQOPTIONS
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1. |
Commutative means |
A. | a + c = b + a |
B. | a + b = b + c |
C. | a + b = b + a |
D. | a + (b + 3) = (a + 2) + c |
Answer» D. a + (b + 3) = (a + 2) + c | |