Property 2 If a is any whole number then `a -: 1 = a`.

Property 3 If a is whole number other than zero then a-:a=1. In other words any whole number (other than zero) divided by itself given 1 as the quotient.

Property 3 If a any whole number other than zero then a-0=a but 0-a is not defined.

If a is any whole number, then 0diva is _________.

EXISTENCE OF MULTIPLICATION IDENTITY If a is any whole number then a xx1=a=1xx a

MULTIPLICATION BY ZERO If a is any whole number then a xx0=0xx a=0

Assertion : If a is a whole number, then a+0=0+a=a . Reason : If a and b are whole numbers, then a+b is also a whole number.

If a is a whole number such that a+a=a , then a= ?

Property 5 If ab and c are whole numbers such that a-b=c then b+c=a .

EXISTENCE OF ADDITIVE IDENTITY If a is any whole number then a+0=a=0+a

Property 1 If a and b are two numbers such that a > b or a = b then a - b is a whole number. If a < b then subtraction a - b is not possible in whole numbers.