48 + 197 = (48 + 2) + 197 = 50 + 197 = 247
305 + 239 = (305 + 5) + 239 = 310 + 239 = 549
999 + 536 = (999 + 1) + 536 = 1000 + 536 = 1536
48 + 197 = (48 + 2) + 197 = 50 + 197 = 247
305 + 239 = (305 + 5) + 239 = 310 + 239 = 549
999 + 536 = (999 + 1) + 536 = 1000 + 536 = 1536