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

Property 5 Let ab and c be whole numbers and b!=0c!=0. If a-:b=c then b xx c=a

Property 6 Let ab and c be whole numbers and b!=0c!=0. If b xx c=0 then a-:c=b and a-:b=c

Assertion : The sum of 278+691+221 is 1901. Reason : If a, b and c are three whole numbers, then (a+b)+c=a+(b+c) .

If A#B=A+B+AB . If for any A there is a number C such that A#C=A, then C=?

Property 4 The subtraction of whole numbers is not associative.That is if abc are three whole numbers then in general a-(b-c) is not equal to (a-b)-c

If a, b, c are three whole numbers then (a+b)+c=a+(b+c) and axx(b+c)=axxb+axxc Find the value of 1546+(984+5389) .

If a, b, c are three whole numbers then (a+b)+c=a+(b+c) and axx(b+c)=axxb+axxc Find the product of 125xx109 .

Which of the following statements are true (T) and which are false (F)? If a, b, c are any three whole numbers then a + (b + c) = (b + a) + c.

ASSOCIATIVITY If abc are any three whole numbers then (a+b)+c=a+(b+c) In other words the addition of whole numbers is associative.