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prealgebravoc2

pre algerbra chp 2 voc

QuestionAnswer
consists of numbers and operations numerical expression
a letter used to reprsent one or more numbers variable
consists of numbers, variables, and operations variable expression
how do you evaluate a variable expression substitute a number for each varialbe adn evaluate the resulting numerical expression
describes a problem using words as labels and using math symbols to relate words verbal model
a result of a repeated multiplication of the same factor power
the number part of a power is called base
the part of a power that shows how many times the base is used as a factor is called exponent
a set of rules telling how to evaluate expressions order of operations
the numbers both postitive and negative on a number line are called integers
integers that are less than 0 are negative integers
integers that are more than 0 are positive integers
if numbers have the same absolute value but different signs they are opposites
the distance from 0 to a number is its absolute value
the opposite of a number is also called additive inverse
the sum of the values divided by the number of values mean
the middle value of a written set of numbers median
the value that occurs most often in a set of numbers mode
The difference of the greatest value and the least range
formed by the intersection of a horizontal number line called the x- axis and the vertical number line called the y- axis coordinate plane
points in a a coordinate plane are called ordered pairs
uses a coordinate plane to display paired data scatter plot
the sum of a number and 0 is the same number additive identity
the product of a number and 1 is the same number multiplication identity
expressions with the same vallue equivalent numberical expressions
Created by: bartlett
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