(i) −7 + 7 = 0 (−a and a are the negative and additive inverses of each other.)
(ii) 29 + (−29) = 0 (−a and a are the negative and additive inverses of each other.)
(iii) 132 + (−132) = 0 (−a and a are the negative and additive inverses of each other.)
(iv) −14 + 36 = 22
(v) −1256 + 514 = −742
(vi) −3305 − 1234 = −4539