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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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