1) 27 + 312 + 69 + 82 + 31 + 43 = (27 + 31) + (312 + 43) + 69 + 82 = 58 + 355 + 69 + 82 = 413 + 151 = 564
2) 54 + 78 + 425 + 26 + 175 + 22 = (54 + 175) + (78 + 22) + 425 + 26 = 229 + 100 + 425 + 26 = 329 + 451 = 780
3) 611 + 17 + 22 + 283 + 88 + 89 = (611 + 89) + (17 + 283) + 22 + 88 = 700 + 300 + 22 + 88 = 1000 + 110 = 1110
4) 871 + 485 + 129 + 531 + 783 + 469 = (871 + 129 + 783) + (485 + 531) + 469 = 1783 + 1016 + 469 = 3368 + 469 = 3837
5) 344 + 256 + 744 + 159 + 920 + 380 = (344 + 256 + 920) + (744 + 159) + 380 = 1520 + 903 + 380 = 2423 + 380 = 2803
1) 27 + 312 + 69 + 82 + 31 + 43 = (27 + 31) + (312 + 43) + 69 + 82 = 58 + 355 + 69 + 82 = 413 + 151 = 564
2) 54 + 78 + 425 + 26 + 175 + 22 = (54 + 175) + (78 + 22) + 425 + 26 = 229 + 100 + 425 + 26 = 329 + 451 = 780
3) 611 + 17 + 22 + 283 + 88 + 89 = (611 + 89) + (17 + 283) + 22 + 88 = 700 + 300 + 22 + 88 = 1000 + 110 = 1110
4) 871 + 485 + 129 + 531 + 783 + 469 = (871 + 129 + 783) + (485 + 531) + 469 = 1783 + 1016 + 469 = 3368 + 469 = 3837
5) 344 + 256 + 744 + 159 + 920 + 380 = (344 + 256 + 920) + (744 + 159) + 380 = 1520 + 903 + 380 = 2423 + 380 = 2803