Types of numbers

Real Numbers

A number that is not imaginary e

ex 1, 2, 3

Not in set i, 3i, 90i

Integers

a number with no fraction or decimal

ex 1, -1, 5

Not in set .5 9/6. 3.9

Whole numbers

A not negative number with no fraction or decimal

Ex 1, 2, 5, 0

Not in set .8, 4/2, -6

Zero

Zero

Ex 0

Not in set everything else

Negative Integers

An integer that is less than 0

Ex -1, -4, -89

Not in set -1/2, 9, 4

Natural Numbers/ Positive Integers/ Counting Numbers

A positive whole number

Ex 1, 4, 8

Not in set -2, 1/3, -9

Non-integer rational numbers

Rational but not whole

ex 1/3, 1/2, -3/8

not in set pi, 8, 4

Rational Numbers

Number that can written as the ratio of 2 integers

ex -2, 1/3, 7.9

Not in set pi, root 6 i

Irrational Numbers

Number that can’t be written as the ratio of 2 integers

ex pi, root 7 root 3

Not in set 1, 1/2, -9

Imaginary/ not real numbers

Nubmer that has i in it (root of a negative number)

ex i, root -3 9i

Not in set 1, 1/2, pi