Properties of real Numbers

Front

What is the identity property of addition?

Back

The identity property of addition states that for any number a, a + 0 = a.

Front

What is an example of the multiplicative property of zero?

Back

The multiplicative property of zero states that for any number a, a x 0 = 0. An example is -9 x 0 = 0.

Front

What does the inverse property of multiplication state?

Back

The inverse property of multiplication states that for any non-zero number a, a x (1/a) = 1.

Front

What is the inverse property of addition?

Back

The inverse property of addition states that for any number a, a + (-a) = 0.

Front

What is a numerical expression?

Back

A numerical expression is a mathematical phrase that contains only numbers, operation symbols, and grouping symbols.

Front

Which of the following is NOT a numerical expression: 2x + 5 or 3 + 4?

Back

2x + 5 is NOT a numerical expression because it contains a variable.

Front

What is the commutative property of addition?

Back

The commutative property of addition states that changing the order of the addends does not change the sum. For example, a + b = b + a.

Front

What is the associative property of addition?

Back

The associative property of addition states that the way in which numbers are grouped does not change their sum. For example, (a + b) + c = a + (b + c).

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac, meaning you can distribute a number across a sum.

Front

What is the identity property of multiplication?

Back

The identity property of multiplication states that for any number a, a x 1 = a.