SETS+OF+NUMBERS

ABSOLUTE VALUE

The sets of Real Numbers are separated into 6 different categories. Each category is represented by a different capital letter. Some real numbers may be included in more than one category.


 * N-** Natural Numbers {1,2,3...}
 * W**- Whole Numbers {0,1,2,3...}
 * Z**- Integers {... -3, -2, -1, 0, 1, 2, 3, ...}
 * Q**- Rational Numbers {these are numbers like -5/3 or 0.5 which result when an integer is divded by a nonzero number. These decimals can be either terminating or repeating}
 * I**- Irrational Numbers { not rational, nonterminating, or nonrepeating numbers like square roots and pie}
 * R**- Real Numbers

As the diagram describes any number that is classified as a natural number is also a whole number, integer, and rational number. If a number is only in the space labeled Rational numbers, it can't be a integer, whole number, or natural number. You work your way out to see what categories a number falls under.