| 882100-(500428-79494)=461166 | 989458-(826041+122828)=40589 |
| 320547+(977998-893845)=404700 | 65463+(297135-180000)=182598 |
| 109898+(64497+125605)=300000 | 886600-(630370+256230)=0 |
| 950725-(387643+200000)=363082 | 303144+(310000+21627)=634771 |
| 636078-(600000-35379)=71457 | 120000+(240000-1130)=358870 |
| 540000+(452303-294123)=698180 | 73674+(677798+239528)=991000 |
| 956690-(928328-12477)=40839 | 437179-(126875+207568)=102736 |
| 836127-(466106-287979)=658000 | 350533+(310000+110873)=771406 |
| 623731+(536057-309788)=850000 | 418900+(640000-580284)=478616 |
| 15951+(264347+568754)=849052 | 800000-(281393+18607)=500000 |
| 704641-(78148+333700)=292793 | 51182+(464749+441069)=957000 |
| 920000-(922777-700000)=697223 | 781672-(412110-172263)=541825 |