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 Description  
 Commutative Property of Addition:  The sum of a group of numbers is the same regardless of the order in which the numbers are arranged.
Algebraically, the commutative property of addition states: a + b = b + a.

Examples:

5 + 2 = 2 + 5 because 5 + 2 = 7 and 2 + 5 = 7.
-3 + 11 = 11 - 3 because -3 + 11 = 8 and 11 - 3 = 8.