| 279500-(377590-328090)=230000 | 898458-(287447+569702)=41309 |
| 383599+(140000+296401)=820000 | 495496-(154054+220000)=121442 |
| 549500-(157296-117796)=510000 | 214709+(395223+19426)=629358 |
| 190000+(75970+718100)=984070 | 768289-(360041+28248)=380000 |
| 665766+(844969-806715)=704020 | 221577+(639909-584723)=276763 |
| 3015+(676670-322015)=357670 | 564120+(136986+118228)=819334 |
| 744977-(417347-58337)=385967 | 287566-(597294-409728)=100000 |
| 682699-(606719-495371)=571351 | 335564+(229145+131919)=696628 |
| 48175+(758909-662800)=144284 | 291919+(319295+153786)=765000 |
| 658191-(609293-571102)=620000 | 669997+(511258-481255)=700000 |
| 843330-(163000+605137)=75193 | 523348-(194857+100000)=228491 |
| 164557+(680688-405731)=439514 | 893815-(589295+4520)=300000 |
