| -490000-(3801+306199)=-800000 | 735800+(421510-480000)=677310 |
| 0+(-549105+266105)=-283000 | -338099+(-320000-171901)=-830000 |
| -660000-(38407-917713)=219306 | 45890+(-974531+111958)=-816683 |
| -521506-(-667398-479456)=625348 | -795797+(582579-367475)=-580693 |
| -718137+(-158725-55000)=-931862 | 0-(-71597-84500)=156097 |
| 27888+(-457988-342874)=-772974 | -578372+(-950000+788372)=-740000 |
| -404650+(556313+458337)=610000 | 12573-(-725795+988368)=-250000 |
| 494589-(-361838+890000)=-33573 | 886550-(796773-175431)=265208 |
| 351252-(-133248+384500)=100000 | -883222-(-40000+30000)=-873222 |
| 249452-(52119-492667)=690000 | -6400-(284575+110000)=-400975 |
| 980224-(355414+251281)=373529 | -181686+(-152819+232800)=-101705 |
| -368272-(-110000-177272)=-81000 | -777300-(583327-501627)=-859000 |
