Number Systems

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Algebra

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6 Terms

1
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Natural numbers
all counting numbers (ex. 1,2,3...). doesn't include 0
all counting numbers (ex. 1,2,3...). doesn't include 0
2
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Whole numbers
all positive integers and 0 (ex. 0, 1, 2, 3..)
all positive integers and 0 (ex. 0, 1, 2, 3..)
3
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Integers
whole numbers and their opposites, negative and positive wholes (ex. -2, -1, 0, 1, 2..)
whole numbers and their opposites, negative and positive wholes (ex. -2, -1, 0, 1, 2..)
4
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Rational numbers
any numbers that can be written in the form of a fraction
any numbers that can be written in the form of a fraction
5
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Irrational numbers
any number that cannot be written in fraction form. Q with a - on top = a set of irrational number
any number that cannot be written in fraction form. Q with a - on top = a set of irrational number
6
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Real numbers
the union of the rational number set and the irrational number set (all numbers basically)
the union of the rational number set and the irrational number set (all numbers basically)