Monday, July 4, 2011

Laws of Operation : Commutative Law (กฏการสลับที่)

Commutative Law (กฏการสลับที่)


The commutative law says that when you add or multiply numbers, the order doesn't matter

Ex1. A+B = B+A
-----> 2+4 = 4+2

Ex2. AxB = BxA
-----> 2x4 = 4x2

BUT!!!!!!

A-B ≠ B-A nor A÷B ≠ B÷A

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