21 terms

algebra

a mathematical language of symbols, including variables

algebraic expression

a combination of variables, numbers, and at least one operation

associative properties

the way in which numbers are grouped (with parentheses) does not change the sum or product

base

in a power, the number used as a repeated factor

coefficient

the numerical factor of a term that contains a variable

commutative properties

the order in which the numbers are added or multiplied does not change the sum or product

constant

a term without a variable

defining the variable

choosing a variable and deciding what the variable represents

distributive property

to multiply a sum by a number, multiply each addend by the number outside the parentheses

equivalent expressions

expressions that have the same value

evaluate

to find the value of an algebraic expression by replacing variables with numbers

exponent

in a power, the number that tells how many times the base is used as a factor

factor the expression

the process of writing numeric or algebraic expressions as a product of their factors

identity properties

properties that state that the sum of any number and 0 equals the number, and the product of any number and 1 equals the number

like terms

terms that contain the same variable(s) to the power

numerical expression

a combination of numbers and operations

perfect square

numbers with square roots that are whole numbers

powers

numbers expressed using exponents

properties

statements that are true for any number

term

each number in a sequence; each part of an algebraic expression separated by a plus or minus sign

variable

a symbol, usually a letter, used to represent a number