Saturday, January 19, 2008

GED Math: The Associative Property of Addition, The commutative Property of Addition

How do you remember the difference between associative and commutative?

The Commutative Property of Addition: a + b = b + a
When you commute back and forth to work... you go between two places.

The Associative Property of Addition: a + (b + c) = (a + b) + c
When you associate with friends at a party , it is always at least three.

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