| 584399-(224007+94000)=266392 | 610000-(334513-18055)=293542 |
| 156370+(441316+363717)=961403 | 29228+(129982-13127)=146083 |
| 898916-(859193+14002)=25721 | 693151+(385280-111890)=966541 |
| 393973+(291791+23911)=709675 | 219290+(20420+420451)=660161 |
| 856268+(309164-300000)=865432 | 130592+(1000000-700000)=430592 |
| 306935+(12134+301087)=620156 | 870819-(914398-523579)=480000 |
| 908963-(347330+541792)=19841 | 781672-(412110-172263)=541825 |
| 1000000-(323000+160664)=516336 | 271712-(573723-517108)=215097 |
| 950415-(210587+72718)=667110 | 230000+(457723+82277)=770000 |
| 984432-(886939-305660)=403153 | 133004+(908099-169118)=871985 |
| 536049-(460000+13650)=62399 | 959691-(700000-512309)=772000 |
| 720740+(269+107093)=828102 | 89166+(235292-44458)=280000 |