(489+534) = (432+170) = 602(602)100 = 6020072:3 = 24241000 = 2400024000+295000 = 319000
(76:4 + 576) = (19 + 342) = 3613611000 = 361000361000-65386 = 295614295614+694386 = 990000
Итак, 60200-319000+990000 = 671200.
(489+534) = (432+170) = 602
(602)100 = 60200
72:3 = 24
241000 = 24000
24000+295000 = 319000
(76:4 + 576) = (19 + 342) = 361
3611000 = 361000
361000-65386 = 295614
295614+694386 = 990000
Итак, 60200-319000+990000 = 671200.