Unit 1 Sets of Numbers

Rational Number

Any number that can be written as a fraction using integers

Natural Number

Begins at one, and continues on

(1, 2, 3, 4, . . . .)

Whole Number

Begins at zero, and continues on

(0, 1, 2, 3, 4, . . . )

Integers

All the whole numbers and their opposites. (. . . , -3, -2, -1, 0, 1, 2, 3, . . .)

1

Natural, Whole, Integer, Rational

12

Natural, Whole, Integer, Rational

3000

Natural, Whole, Integer, Rational

7

Natural, Whole, Integer, Rational

13

Natural, Whole, Integer, Rational

0

Whole, Integer, Rational

-6

Integer, Rational

-121

Integer, Rational

-73

Integer, Rational

-10

Integer, Rational

-1

Integer, Rational

.1

Rational

.67

Rational

7.22222...

Rational

9.4

Rational

100.5

Rational

¾

Rational

-½

Rational

(integers are only positive and negative WHOLE numbers - no fraction or decimal parts)

21.4

Rational

-21.4

Rational

√121

Counting, Whole, Integer, Rational