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The Real Number System. Joyce Waid Locust Fork High School. The Real Number System is divided into two categories: Rational and Irrational. Rational Numbers : Numbers, such as ½ and –3/1 that can be written as a ratio of two integers.

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### The Real Number System

Joyce Waid

Locust Fork High School

jwaid

The Real Number System is divided into two categories:RationalandIrrational.

Rational Numbers: Numbers, such as ½ and –3/1 that can be written as a ratio of two integers.

Irrational Numbers:Real numbers, such as square root of 2 or , that are not rational.

The Real Number System

jwaid

Rational Numbers: Includes integers, whole numbers, natural numbers, and numbers written as the ratio of two integers.

Integers: {. . . – 3, – 2, – 1, 0, 1, 2, 3, . . .}

Whole Numbers: {0, 1, 2, 3, . . .}

Natural Numbers: {1, 2, 3, . . .}

The Real Number System

jwaid

### The Real Number System numbers, and numbers written as the ratio of two integers.

Real Numbers

Rational Numbers

Irrational Numbers

1/2

-2

2

3

3

2/3

0

• 5

• 2

3

4

15%

-0.7

1.456

jwaid

### The Real Number System numbers, and numbers written as the ratio of two integers.

Real Numbers

Rational Numbers

Irrational Numbers

Integers

2

3

3

-2

1/2

2/3

0

• 5

• 2

3

4

- 0.7

15%

1.456

jwaid

### The Real Number System numbers, and numbers written as the ratio of two integers.

Real Numbers

Rational Numbers

Irrational Numbers

Integers

Whole

2

3

1/2

3

2/3

0

• 5

• 2

3

4

-2

- 0.7

15%

1.456

jwaid

### The Real Number System numbers, and numbers written as the ratio of two integers.

Real Numbers

Rational Numbers

Irrational Numbers

Integers

Whole

2

Natural

3

1/2

2/3

0

3

• 5

• 2

3

4

-2

- 0.7

15%

1.456

jwaid