| 879688-(854129-589712)=615271 | 279320-(102600+170720)=6000 |
| 195974+(590000-91974)=694000 | 276897+(406881+186222)=870000 |
| 304113+(917875-810559)=411429 | 44501+(317821+86880)=449202 |
| 790325-(168463+593632)=28230 | 626226-(273882+152344)=200000 |
| 649931-(913939-681740)=417732 | 12446+(128260+420000)=560706 |
| 809522+(780000-616385)=973137 | 951298-(245343-131000)=836955 |
| 600000-(823462-473462)=250000 | 756548-(390000+271248)=95300 |
| 349589+(780693-490000)=640282 | 807079-(766436-309357)=350000 |
| 720740+(269+107093)=828102 | 623954-(800530-412455)=235879 |
| 124745+(551000+252060)=927805 | 164557+(680688-405731)=439514 |
| 178413+(817854-432521)=563746 | 321745+(250000+177000)=748745 |
| 720728-(620830+72772)=27126 | 684445-(200844+113530)=370071 |
