NUMBER SYSTEM

GO TO NUMBER SYSTEM

NUMBER SYSTEMS
1.           Natural Numbers
2.           Whole Numbers
3.           Integers
4.           Rational Numbers
Irrational Numbers


     NaturalNumbers (Or counting numbers)
{1,2,3,4…}
e.g.
a.  Numbers of Days in a week.
b.  Number of pages in a book.

c.   Number of schools in a city.

 Whole Numbers

         {0,1,2,3, 4…}

Integer Numbers – Number system consisting of natural numbers, their negatives and number 0 is called integer number.
                 {…-3, -2, -1,0,1,2, 3…}

Rational Numbers – A rational number is of the form p/q where p and q are integers and q≠0. e.g. 6/5, 5/6, -8/9 etc.

Irrational numbers – Numbers which cannot be written in the form p/q where p, q are integers and q≠0. These numbers can be written as decimals but cannot be expressed as fractions i.e.  irrational numbers have non-termination and non-recurring decimal. e.g. π, √2, √5 etc.

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