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math vocab

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coefficient
a number that multiplies a variable
equation
a mathematical phrase with an equal sign
expression
a mathematical phrase without an equal sign
at most
less than or equal to
at least
greater than or equal to
commutative property
can add or multiply in any order and still get the same answer
associative property
you add or multiply in the same order but change the ( )
variable
a letter that represents a number
addition property of zero
8+0=0 when a # is added to 0 the sum is always the other # added to 0
addition property of -1
any number times -1 is the same number but the opposite (+-)