CLOSURE PROPERTY If `a and b` are two whole numbers then their product `a xx b` is also a whole number.

CLOSURE PROPERTY If a and b are two whole numbers then a+b is also a whole number.In other words the sum of any two whole numbers is a whole number or whole numbers are closed for addition.

COMMUTATIVITY If a and b are any two whole numbers then a+b=b+a

Sum of two whole numbers is always less than their product.

Are all whole numbers also whole numbers?

Every natural number is a whole number.

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.

AN IMPORTANT RESULT If a and b are two whole numbers such that q is the quotient and r is the remainder when a is divided by b then

CLoSURE PROPERTY If (a)/(b) and (c)/(d) are any two rational numbers then (a)/(b)-(c)/(d) is a rational number.

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

Property 10 is the smallest whole number and there is no largest whole number.