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Number sets
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Key Concepts:
Terms in this set (10)
Natural numbers
Counting numbers starting at 1
Whole numbers
Natural numbers plus 0
Integers
Natural numbers and negative whole numbers
Rational numbers
Numbers that can be written as fractions (includes integers, repeating decimals, and terminating decimals)
Positive integers
Integers that have a + sign
Negative integers
Integers that have a - sign
Even Numbers
Integers divisible by 2: 0, 2, 4, 6, 8, ...
Odd Numbers
Integers NOT divisible by 2: 1, 3, 5, 7, 9, ...
Real Numbers
Every kind of number (except imaginary or complex numbers)
Irrational Numbers
Numbers that cannot be written as fractions: decimals that do not repeat or terminate
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