# Chapter 1 Math Vocab

## 17 terms

### 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

Parentheses
Exponents
Multiplication
Division
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

-numbers with same absolute value but different signs
-when added together, their sum is zero