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16 Cards in this Set
 Front
 Back
Composite number

A positive whole number with two factors. In other words, a number that is not prime. Zero and one are neither composite nor prime.
Ex. 4 is a composite number (factors: 1,2, and 4) 

denominator

The part of a fraction that stands for the number of equal parts a whole or group is divided into.
Ex. 5/6 6 is the denominator. 

cross product

In an equation made up of two fractions, the numerator of one fraction times the denominator of the other fraction. Two ratios are equal only if their cross products are equal.
Ex. 2/5=6/15 2 times 15 =30 and 5 times 6=30 are the cross products. 

improper fraction

A fraction with a numerator that is larger than or equal to its denominator.Ex. 7/6
5/5 

like fractions

Two or more fractions that have the same denominator.
Ex. 3/5 and 4/5 

least common multiple (LCM)

The smallest multiple that two or more numbers have in common. Ex.  The LCM of 4 and 6 is 12


mixed number

A value that combines a whole number and a fractional amount.Ex.  Mixed fraction: 2 1/2
mixed decimal: 2.5 

octagon

An eightsided polygon.


parallel lines

LInes in the same plane that do not intersect. The symbol // means parallel.
Ex. _______________ ______________ 

percent

The ratio of a number to 100 (The symbol % means percent)


prime factorization

Breaking down a composite number until all of the factors are prime.
36 is 3 times 3 times 4 

probability

The likelihood that an event will occur. The probability that an event will occur is 0, 1, or somewhere between 0 and 1


radius

A length that is half the diameter of a circle; the distance from the center of the circle to the circle itself.


right angle

An angle that measures 90


right triangle

A triangle with one right angle


supplementary angles

Two angles whose sum is 180
139 + 41 = 180 