| -718137+(-158725-55000)=-931862 | 660000-(-470000+440000)=690000 |
| 157757-(-789546+772849)=174454 | 716293+(-873820-802473)=-960000 |
| 157813-(-973930+975762)=155981 | 574304-(-21105-321501)=916910 |
| -261584+(400000-491150)=-352734 | 710000+(407803-995062)=122741 |
| -940272-(530000-799835)=-670437 | 366284+(-160000-296284)=-90000 |
| -376904+(-810132+508562)=-678474 | -174733+(-145403-155622)=-475758 |
| -104523-(789898+10000)=-904421 | -17001-(-683892+433274)=233617 |
| 618517-(387337-359366)=590546 | -787283+(-192000+807283)=-172000 |
| 962264+(439858-857767)=544355 | 547255+(-996652-430603)=-880000 |
| 506594-(770000-58722)=-204684 | -117790-(-995099+777309)=100000 |
| -268348-(617842-900000)=13810 | 632314+(-831674+747565)=548205 |
| 865887-(416050-60163)=510000 | -75100-(-760066+419966)=265000 |
