| 257503+(211694+430803)=900000 | 636998+(134892+73084)=844974 |
| 101903+(155968+219150)=477021 | 822790-(400000+422790)=0 |
| 423681+(680000-303681)=800000 | 737850-(230000+248600)=259250 |
| 568525-(730022-278722)=117225 | 69626+(328746+139309)=537681 |
| 320000+(419129-371049)=368080 | 43877-(160356-159176)=42697 |
| 271712-(573723-517108)=215097 | 131748+(402239+226013)=760000 |
| 214709+(395223+19426)=629358 | 1000000-(408233+138379)=453388 |
| 863201-(420000+82600)=360601 | 720728-(620830+72772)=27126 |
| 493807+(859768-591595)=761980 | 570000+(475265-197781)=847484 |
| 700000+(461336-400000)=761336 | 990000-(638495-548495)=900000 |
| 144877+(740000-603418)=281459 | 781672-(412110-172263)=541825 |
| 656691-(175148-58716)=540259 | 659643-(85595+251000)=323048 |
