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## Mathematics / The Number System

### Mathematics / The Number System

Natural numbers are those that are used for counting. The first natural number is 1.

Whole numbers consist of all the natural numbers and the number 0.

A Rational number is a number which can be expressed as the quotient or fraction of two integers. If the number is of the form p/q, where p and q are integers and q is not equal to zero, it is called a rational number. It is also expressed as a ratio of two integers.
An Irrational number is a real number which cannot be written as a simple fraction.        Exercises
Lessons
Topics
Exercises
Lessons
Topics
• ### The Number System

• Questions: 10 ### Natural Numbers

• Questions: 10 ### Whole Numbers

• Questions: 10 ### Integers

• Questions: 10 ### Fractions

• Questions: 10 ### Decimals

• Questions: 10 ### Rational Numbers

• Questions: 10 ### Irrational Numbers

• Questions: 10 ### Real Numbers

• Questions: 10
• The Number System
• Number Line and Properties of Operations
• Natural Numbers
• Whole Numbers
• Integers
• Types of Fractions
• Addition and Subtraction of Fractions
• Multiplication and Division of Fractions
• Decimals
• Decimals Conversion
• Multiplication and Division of Decimals
• Rational Numbers
• Irrational Numbers
• Real Numbers
• ### Irrational Numbers

A lesson on Irrational Numbers ### Real Numbers

Learnhive Lesson on Real Numbers ### Rational numbers

Learnhive Lesson on Rational numbers ### Real numbers

Learnhive Lesson on Real numbers