| 280720-(666235-511457)=125942 | 81000+(924059-134782)=870277 |
| 697619-(358209+239410)=100000 | 475773-(290000+185773)=0 |
| 682948+(770823-534882)=918889 | 968978-(136647+290308)=542023 |
| 415819+(210000+145211)=771030 | 807079-(766436-309357)=350000 |
| 122045+(218950+144599)=485594 | 320000-(331924-147046)=135122 |
| 847708-(603255-500000)=744453 | 993477-(636599-349122)=706000 |
| 257503+(211694+430803)=900000 | 770000+(495357-397600)=867757 |
| 622041+(44106+133853)=800000 | 431853+(738372-401507)=768718 |
| 573319+(274241-52977)=794583 | 842358-(625350+200000)=17008 |
| 714539-(692003+3383)=19153 | 147362+(518731+253907)=920000 |
| 581951+(529053-357424)=753580 | 1000000-(343860-227280)=883420 |
| 783999-(123629+266776)=393594 | 394046+(430915+135039)=960000 |
