1) 980081+(341640-1263*109)
1263*109= 137 667
341640-137 667=203 973
980081-203 973=776 108
2) 400615-(352203-2031*138)
2031*138=280 278
352203-280 278= 71 925
400615-71 925=328 690
3) (11466+128*3)/(1131-894)
128*3=384
11466-384= 11082
1131-894=237
11082/237=46,76
4) (41*134+11978)/(1211-899)
41*134= 5494
5494+11978= 170472
1211-899=312
170472/312=546,4
5)(12084/28-27)*37-12060
12084/28