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# Draper Math 8 Voc #2

### Math Vocabulary

TermDefinition
prime number a whole number greater than 1 that has exactly 2 factors, 1 and itself.
composite number any whole number greater than one that has more than 2 factors.
prime factorization expressing a composite number as the product of prime numbers (ex. 63=3x3x7)
absolute value the number of units a number is from zero (0) on the number line.
exponent in a power, the number of times the base number is used as a factor.
base in a power, the number used as a factor.
greatest common factor (GCF) the greatest of the common factors of two or more numbers.
least common multiple(LCM) the least of the non-zero common multiples of two or more numbers.
reciprocal the multiplicitive inverse of a number
opposite (of a given number) two integers are opposites if they are represented on the number line by points that are the same distance from zero, but on opposite sides of zero. The sum of opposites is zero (0).
Odd Number Number that cannot be divided by 2.
Even Number Number that is divisable by 2.
Estimate To make an educated guess.
Greater Than More than or bigger than.
Less Than Not as many as or smaller than.
Decrease Get smaller in size or number.
Increase Get larger in size or number.
Probability The chance that a particular outcome will occur.
Congruent Having the same shape and size.
Perpendicular Lines that intersect at right angles to eachother.
Parallel Lines that are the same distance apart.
Symmetry When one half of an object is a mirror image of the other half.
Created by: Ben McGrath