Q.4 Find the sum of:
(a) 137 and – 354
(b) – 52 and 52
(c) – 312, 39 and 192
(d) – 50, – 200 and 300

(a) 137 and -354
(137) + ( -354) = (137) - 354
= (-217)
(b) -52 and 52
(-52) + (+52) = 0
(c) -312, 39 and 192
(-312) + (+ 39) + (+192) = (-312) + 231 = – 81
(d) – 50, -200 and 300
(-50) + (-200) + (+ 300)
= -250 + 300 = 50