Properties of Real Numbers

a + b = b + a
3 + 7 = 7 + 3

Commutative Property of Addition
a * b = b * a
3 * 7 = 7 * 3

Commutative Property of Multiplication
(a + b) + c = a + (b + c)
(6 + 4) + 5 = 6 + (4 + 5)

Associative Property of Addition
(ab)c = a(bc)
(6*4)5 = 6(4*5)

Associative Property of Multiplication
a + (-a) = 0
5 + (-5) = 0

Inverse Property of Addition
a + 0 = a
7 + 0 = 7

Identity Property of Addition
a * 1 = a
7 * 1 = 7

Identity Property of Multiplication
a (1/a) = 1
5 (1/5) = 1

Inverse Property of Multiplication
a(b + c) = ab + ac
5(4 - 2) = (5 * 4) - (5 * 2)

Distributive Property
n * 0 = 0
-5 * 0 = 0

Multiplication Property of Zero
n * -1 = -n
-4 * -1 = 4

Multiplication Property of -1

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Card Set

Properties of Real Numbers

Description

lesson 1-8

Updated

2010-12-15T02:45:43Z

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