Natural - Natural numbers include only positive whole numbers beginning with 1.
Ex. 1, 2, 3, 4, 5.....
Whole - Whole numbers include all Natural Numbers and 0.
Ex. 0, 1, 2, 3, 4, 5....
Integer - All Whole and Natural Numbers, and negative non-decimal numbers.
Ex. .... -2, -1, 0, 1, 2, 3....
Rational - All Natural and Whole Numbers and Integers. Also included all repeating decimals and terminating decimals. (No never-ending, no pattern decimals.)
Ex. 2/3, -1.5, 1, 2, -8...
Real - All Natural and Whole Numbers, Integers, and Rational Numbers.
