The number in front of the variable

To find the value of an expression

A letter or symbol used to represent a number

The property that states that two or more numbers can be added or multiplied in any order without changing the answer

For all real numbers a(b + c) = ab + ac

An expression that contains at least one variable

The parts of an expression that are added or subtracted

The property that states the product of any number and 1 is that number or the sum of any number and 0 is that number

An expression that contains only numbers and operations

A rule for evaluating expressions

The property that states the sum or product is always the same regardless of their grouping

A number with no variable part (a value that does not change)