| 164557+(680688-405731)=439514 | 381138+(913235-680000)=614373 |
| 385665+(140911+380000)=906576 | 648667-(132373+386294)=130000 |
| 870382-(955615-322613)=237380 | 567218+(76141+6641)=650000 |
| 988517-(348948-87655)=727224 | 841051-(622242+138570)=80239 |
| 951298-(245343-131000)=836955 | 338195+(260000+250652)=848847 |
| 91969+(280520+471205)=843694 | 856268+(309164-300000)=865432 |
| 289100+(786430-160068)=915462 | 77246+(243220-44765)=275701 |
| 983756-(292630+688150)=2976 | 768791-(233914+188061)=346816 |
| 703627-(538027-404706)=570306 | 830000-(198546+54075)=577379 |
| 697902-(174623+413815)=109464 | 410567-(640000-276195)=46762 |
| 137736+(220000+440000)=797736 | 620000+(727172-390177)=956995 |
| 555902-(816474-445535)=184963 | 252663+(284027+342310)=879000 |
