4.1 Properties of Real Numbers

Front

What is the ADDITIVE INVERSE of -7?

Back

7

Front

What property is this? 38 + (-38) = 0

Back

Additive Inverse

Front

What property is this? 77 + (8 + 3) = (8 + 3) + 77

Back

Commutative

Front

What property is this? 4/5 x 5/4 = 1

Back

Multiplicative Inverse

Front

What property is this? 14 x 1 = 14

Back

Multiplicative Identity

Front

What is the ADDITIVE IDENTITY?

Back

0, because adding 0 to any number does not change its value.

Front

What is the MULTIPLICATIVE IDENTITY?

Back

1, because multiplying any number by 1 does not change its value.

Front

What is the COMMUTATIVE PROPERTY of addition?

Back

a + b = b + a, the order of addition does not change the sum.

Front

What is the COMMUTATIVE PROPERTY of multiplication?

Back

a x b = b x a, the order of multiplication does not change the product.

Front

What is the ASSOCIATIVE PROPERTY of addition?

Back

(a + b) + c = a + (b + c), the grouping of numbers does not change the sum.