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# STAAR Review 1

TermDefinition
factor Any number multiplied to form a product. A product can be divided by one factor to find the other factor.
inverse Reversed position or direction
common denominator A number that is a multiple of all denominators in a problem.
prime number A number with only two factors: the number itself and one.
range The difference between the least and greatest values in a set of numbers.
integers All whole numbers (both positive and negative) and zero.
mean The sum of a group of numbers divided by the number of numbers. Also known as the average.
median A value found by ordering a group of data from least to greatest and choosing the middle value of the group.
composite number A positive whole number with more than two factors. In other words, a number that is not prime. Zero and one are neither composite nor prime.
percent The ratio of a number to 100 (per one hundred). The symbol %
proportion An equation stating that two ratios are equal
unit ratio A ratio that shows the cost per unit of measure
interquartile range (IQR) The difference between the upper quartile and the lower quartile
rational numbers All whole numbers (both positive and negative), zero, and decimals and fractions
reciprocal used to divide two fractions, when you flip the numerator and denominator in order
exponent multiply the number by itself
absolute value the distance from zero, always positive
of word that suggests using multiplication
Created by: mschoenb

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