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Number Systems
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Number Systems a way of classifying different types of numbers
most numbers or sets of numbers can belong to several different sets of numbers at the same time There are 6 different number systems
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Real Symbol - R Includes - All numbers
Doesn’t Include - Imaginary numbers Examples - 8, 15.2, 37/5, pi
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Rational Symbol - Q Includes - All terminating and repeating decimals, can be written as fractions Doesn’t Include - Non terminating, non repeating numbers Example - 9, ⅚, 2.5, …
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Irrational Symbol - Q Includes - All non terminating, non repeating decimals Doesn’t Include - Terminating, repeating decimals Example - Pi, √ 2
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Integers Symbol - I Includes - All whole numbers, positive or negative
Doesn’t Include - Non whole numbers Example - 2, 18, -6, 0
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Whole Numbers Symbol - W
Includes - 0 and all the whole numbers above it Doesn’t Include - Negatives or decimals Example - 0,1,2,3,4
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Natural Symbol - N Includes - All whole numbers above 0
Doesn’t Include - 0 and any number less, decimals Example - 1,2,3,4,5
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Examples Name all of the sets that the following numbers fit into 15
35/2 Pi -0.6
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