# Pre-Algebra Examples

, , , , , , , , , , ,

The mean of a set of numbers is the sum divided by the number of terms.

Factor out of .

Cancel the common factor.

Rewrite the expression.

Add and to get .

Add and to get .

Add and to get .

Add and to get .

Add and to get .

Add and to get .

Add and to get .

Add and to get .

Add and to get .

Add and to get .

Add and to get .

Divide by to get .