| -63900+(-21237-83949)=-169086 | -787283+(-192000+807283)=-172000 |
| -419996-(880522-759904)=-540614 | -454352-(-818155+680000)=-316197 |
| 126575+(-634000+102103)=-405322 | 229593-(696384+484209)=-951000 |
| 506594-(770000-58722)=-204684 | 643213-(418917+133279)=91017 |
| 251021+(-272578-544408)=-565965 | 954223+(-809333+396006)=540896 |
| 500000-(-971833+982833)=489000 | -876163-(-644914-729085)=497836 |
| 75454-(-679890+747376)=7968 | -575110+(845000-137623)=132267 |
| 480000+(-800842+810842)=490000 | 735800+(421510-480000)=677310 |
| 270000+(285877-87140)=468737 | 65052-(-100000+265052)=-100000 |
| 632713-(471604-328743)=489852 | -231000-(400000+360000)=-991000 |
| -390000-(-963638-426362)=1000000 | -595347-(22896+24209)=-642452 |
| -50400-(200000-550400)=300000 | -571510+(267405+894105)=590000 |
