| 151030+(507400-843697)=-185267 | 363539-(812856+50683)=-500000 |
| -120000+(52207+545793)=478000 | -600000-(-678000+135096)=-57096 |
| -639036-(141554+79410)=-860000 | -205975-(378785+227669)=-812429 |
| 121089-(-104930+660000)=-433981 | 313243-(670000-754094)=397337 |
| 905710+(-791974-443736)=-330000 | -319200-(-320086-859114)=860000 |
| -223030-(146146-869176)=500000 | 871632+(-919700-584640)=-632708 |
| 560177+(-591743-358983)=-390549 | 300000-(-270267-380000)=950267 |
| -845323-(-670000+236690)=-412013 | -348352+(-2505+900857)=550000 |
| 790000-(-57742+543061)=304681 | 456383+(-943114+986731)=500000 |
| -521639+(-567772+709321)=-380090 | -23809+(-209502-121075)=-354386 |
| 13413-(-541528-248403)=803344 | 710764-(609547-653631)=754848 |
| 628847+(58288-907868)=-220733 | 101271-(305229+457658)=-661616 |
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