From above examples, it is clear that on adding 0 with any other integer, same integer is found. Therefore 0 is additive identity for integers. It can be understand by following examples
(i) 5 + 0 = 5,
(ii) (- 10) + 0 = – 10,
(iii) (- 9) + 0 = – 9,
(iv) 23 + 0 = 23
(v) 0 + 20 = 20,
(vi) 0 + (-2) = -2
