| -712684+(57812+517872)=-137000 | -585377-(-480399+644868)=-749846 |
| -58214-(-357229+313000)=-13985 | 181700+(-621258+699558)=260000 |
| 715666-(691609-257902)=281959 | -34358+(481500-200000)=247142 |
| -978045+(-95769+673814)=-400000 | -22240+(-124242-369578)=-516060 |
| 167194-(-445850-170000)=783044 | -639036-(141554+79410)=-860000 |
| 630475+(236233-551375)=315333 | 695593+(-51422+269609)=913780 |
| -274354-(142700+107351)=-524405 | -895162-(-356872-304734)=-233556 |
| -235034+(-264000+534449)=35415 | -742544-(389742-448261)=-684025 |
| -360000+(-208084+728084)=160000 | 178457+(-188463-456783)=-466789 |
| 674183+(-866595+592412)=400000 | -670000-(776839-658643)=-788196 |
| -456484-(-407468-149016)=100000 | 954369+(155984-565700)=544653 |
| 578045-(0+524958)=53087 | 571762-(-518639+132260)=958141 |