Mark right or wrong in front of the following statements :
(i) All natural numbers are whole numbers.
(ii) 1 is the smallest whole numbers.
(iii) The sum of two whole numbers is always a whole numbers.
(iv) 245 + 450 = 450 + 245.
(v) 1124 + 0 = 0.
(vi) The operation of subtraction is reciprocal to the operation of addition.
(vii) 4 – 4 = 0 (is a whole numbers).
(viii) 7 – 7 ≠ 0.
(ix) The product of any two whole numbers is a whole numbers.
(x) When we multiply a whole number by 0 the product is the number itself.
(xi) When we multiply a whole number by 1 the product is the number itself.