addition Addition satisfies two important properties: the commutative property and the associative property. The commutative property says that a + b = b + a for all a and b. For example, 3 + 2 = 2 + 3 The associative property says that (a + b) + c = a + (b + c) for all a, b, and c. For example, (1 + 2) + 3 = 1 + (2 + 3)

Related Term: subtraction