Add $n$ numbers and divide the result by $n$.
Associative Property of Multiplication
When three real numbers are multiplied, it makes no difference which two are multiplied first.
Associative Property of Addition
When three real numbers are added, it makes no difference which two are added first.
An inequality that contains one or more variable terms.
Additive Inverse Property
The sum of a real number and its opposite is zero.
Two numbers whose sum is zero.
Additive Identity Property
The sum of zero and a real number equals the number itself.
Addition Property of Inequalities
Add the same quantity to each side.
Add two integers with like signs
Add their absolute values and attach the common sign to the result.
A number where the sum of its proper factors is greater than the number.