1)972,927,729,792,279,297
2)231,213,312,321,123,132
3)177,717,771
4)903,930,309,390
5)555
67812 – (489 * 105 + 7445) = 9022
489 * 105 = 51345
51345 + 7445 = 58790
67812 - 58790 = 9022
(94554 / 927 + 884) – 109 = 877
94554 / 927 = 102
102 + 884 = 986
986 - 109 = 877
39405 / 555 + 301*203 = 61174
39405 / 555 = 71
301 * 203 = 61103
71 + 61103 = 61174
346252 / 428 – 18231 / 309 = 750
346252 / 428 = 809
18231 / 309 = 59
809 - 59 = 750