Arithmetic

In Hindu Arabic System, we use ten symbols 0,1,2,3,4,5,6,7,8&9.called digits to represent any number. A group of figures,representing a number is called a numeral. Representations of a number in figure is called notation and expressing a number in words is called numeration.
we use place value systems to represent a number.'Unit's place;Ten's place;Hundered's place etc.
Even Numbers: A numbers divisible by 2 is called an even number, such as 2,4,6,8,10,56,536 etc.

Odd Numbers:Aa numbers not divisible by 2 is called an odd numbers, such as 1,3,5,7,9,11,119 etc.

Prime Numbers: A number,other than 1 is called a prime numbers,if it is divisible by 1 and itself only.

Composite Numbers: A number, other than 1, which is not prime number is called a composite number.