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Real Number System

STUDY
PLAY
Natural Numbers
1, 2, 3, 4, 5, ...
Whole Numbers
0, 1, 2, 3, 4, 5, ...
Integers
...-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, ...
Rational Numbers
Any number that can be expressed as the ratio of two integers, written in the form a/b where a and b are integers, b cannot equal 0. A repeating decimal or a terminating decimal.
Irrational Numbers
A number that cannot be expressed as the ratio of two integers. Non-repeating, non-terminating decimal.