# Sign up for an account

Already have a Quizlet account?

Log in.

###
variable

a letter which stands for a number

###
expression

any combination of numbers, variables,operations and grouping symbols

###
value

the number that a variable stands for

###
evaluate

to find the value of an expression when the value of the variables are known

###
substitute

to replace a variable, term, or expression with an equivalent variable, term or expression

###
power

repeated multiplication by the same factor

###
base

the repeated factor in a power

###
exponent

the number of times that the base is repeated

###
area of a square

s=side length

A=s squared

units will be squared

###
volume of a cube

s=side length

v=s cubed

units will be cubed

###
order of operations

Parentheses

Exponents

Multiplication

Division

Addition

Subtractions

###
integers

the set of positive and negative, whole numbers, also zero

###
absolute value

the distance between a number and zero on the number line

###
additive inverses/opposites

-numbers with same absolute value but different signs

-when added together, their sum is zero

###
inverse property of addition

a+(-a)=0

any number plus its opposite equals zero

###
definition of subtraction

a-b=a+(-b)

subtraction is the same as adding the opposite of a number

###
multiplication property of one

-1*a=-a

any number multiplied by negative one equals its opposite

### Please allow access to your computer’s microphone to use Voice Recording.

## We can’t access your microphone!

### Click the icon above to update your browser permissions and try again

Example:

### Reload the page to try again!

Reload

## Press Cmd-0 to reset your zoom

## Press Ctrl-0 to reset your zoom

### It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

## Your microphone is muted

### For help fixing this issue, see this FAQ.