38 terms

# Pre-Algebra exam VOCAB

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Absolute Value
the distance of a number from 0 on a number line
if a=b then a+c=b+c
when you add a number and 0 and the sum is the original number
(a+b)+c = a+(b+c)
Associative Property of Multiplication
(ab)c = a(bc)
Base
is the repeated factor of a number written in exponential form
Coefficient
a number that multiplies a variable
a+b = b+a
Commutative Property of Multiplication
ab = ba
Composite number
an integer greater than 1 with more than two factors
Constant
a term that has no variable
Distance Formula
d=rt
Equation
a math sentence with an = symbol
Equivalent Fractions
a fraction that describes the same part of a whole
Exponent
a number that shows how many times a base is used
Factor
a number that is multiplied by another number to find a product
GCF
the greatest factor that 2 numbers share
sum of a number and zero is that original number
Identity Property of multiplication
product of a number and zero is that original numer
Inequality
uses the symbols <, >, or =
Integer
whole numbers and their opposites
LCM
the least number that is a common multiple
Like terms
terms with the same variables raised to the same power
Mean
sum of a set of data divided by the # of data items
Median
the middle number of a set of data
Mode
the number that occurs most often
Multiplicative Identity
product of a number and 1 is that number
Order of Operations
PEMDAS
Ordered Pair
the X and Y coordinates
Origin
intersection of the X and Y axises
Outlier
much higher or lower than the other numbers
Prime Numbers
only factors are 1 and itself
Reciprocal
two numbers with a product of 1
Term
a number, variable, or symbol
Variable
a letter that stands for a number
Variable Expression
math phrase that uses variables, numbers, and symbols
X-axis
Horizontal line on a scale
Y-axis
vertical line on a scale