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13 terms

constant

number that does not change

variable

letter that represents some number

algebraic expression

contains at least on evariable

monomial

expression that is a number, variable, or product of one or more variables

polynomial

a monomial or sum/difference of monomials

like terms

have the EXACT SAME variable parts

order of operations

PEMDAS

real numbers

any number tha can be found on a numeber line

rational numbers

can be represented as a quotient of 2 integers or can be written as a terminating or repeating decimal

integers

0, +1, +2, +3,...

whole numbers

0, 1, 2, 3,...

natural numbers

1, 2, 3,...

irrational numbers

any numbers tha aren't real