| 831901-(730042-6262)=108121 | 857140-(237789+538351)=81000 |
| 185789+(262950+448731)=897470 | 61379+(115525+11045)=187949 |
| 931164-(22355+908809)=0 | 830000-(964447-310111)=175664 |
| 431409-(897089-788298)=322618 | 42233+(627500-71276)=598457 |
| 710000-(2806+700000)=7194 | 694999-(58+413860)=281081 |
| 246992+(215955+373483)=836430 | 830492-(531879-370233)=668846 |
| 218776+(463977-462753)=220000 | 237239+(908193-401076)=744356 |
| 479005+(48617+200000)=727622 | 214709+(395223+19426)=629358 |
| 151038+(635316-351354)=435000 | 663740+(93497+42763)=800000 |
| 540000-(142241+78049)=319710 | 287566-(597294-409728)=100000 |
| 71133+(413583-51723)=432993 | 489531+(659970-577451)=572050 |
| 680000-(760533-649901)=569368 | 968355-(11935+277002)=679418 |
