### Whole

There is no fractional or decimal part. And no negatives.

Example: 5, 49 and 980 are all whole numbers.

### Natural

Whole Numbers, but without the zero. Because you can't "count" zero.

Example: 1, 2, 3, 4, 5, (and so on).

### Irrational

is a real number that cannot be written as a simple fraction.Irrational means not Rational

Example:22/7, square root of 2,square root of 3, square root of 1

### Integers

Integers are like whole numbers, but they also include negative numbers ... but still no fractions allowed!

Example: -3,-45,-89,8,3,5,6,7,-34

### Real

the numbers that can be written in decimal notation, including those that require an infinite decimal expansion. The set of real numbers includes all integers, positive and negative; all fractions; and the irrational numbers, those whose decimal expansions never repeat.

Examples:3.9, -34,7/3, 34, 234/98,.98323, 1/2,2, 4,