## Math5 - Rational Number Operations

##### Created by:

gmallen  on February 23, 2011

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# Math5 - Rational Number Operations

 reciprocalstwo nonzero numbers whose product is 1
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#### Definitions

reciprocals two nonzero numbers whose product is 1
multiplicative inverses another name for reciprocals
rational number a number that can be written as a quotient like a/b
terminating decimal when the quotient of a rational number has a remainder of zero
repeating decimal when the quotient of a rational number has a digit or group of digits that repeat without end
front-end estimation adding the front-end digits to get a low estimate, then use the remaining digits to adjust the sum to a closer estimate
leading digit the leftmost nonzero digit of a number
mean the sum of the values divided by the number of values
median the middle value when the numbers are written in numerical order
mode the value that occurs the most often
range the difference of the greatest value and the least value

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