Răspuns:
175 + 252 + 395 = (175 + 252) + 395 = 427 + 395 = 822
348 + 299 + 162 = (348 + 299) + 162 = 647 + 162 = 809
216 + 175 + 294 + 235 = (216 + 294) + (175 + 235) = 510 + 410 = 920
169 + 186 + 294 + 171 = (169 + 294) + (186 + 171) = 463 + 357 = 820
483 + 197 + 142 + 178 = (483 + 197) + (142 + 178) = 680 + 320 = 1000