| 428922-(100000+28922)=300000 | 252652+(189416+125720)=567788 |
| 474365-(255249-37245)=256361 | 894711-(54887+49824)=790000 |
| 423681+(680000-303681)=800000 | 147362+(518731+253907)=920000 |
| 612109-(443300-281191)=450000 | 110000+(356332-115583)=350749 |
| 151508+(104541+144062)=400111 | 300000+(7414+118815)=426229 |
| 657443-(523435+31630)=102378 | 180499+(79454+410047)=670000 |
| 616582-(966870-774053)=423765 | 779828-(713334-533506)=600000 |
| 188502+(526134-492679)=221957 | 130000-(77400+52394)=206 |
| 737035-(693162-465496)=509369 | 396730+(462000-461000)=397730 |
| 216845+(627223-224068)=620000 | 796618-(414427+326594)=55597 |
| 546498+(353865-320000)=580363 | 295196-(486408-288691)=97479 |
| 754943-(204900+196200)=353843 | 298700+(111087+584636)=994423 |
