| 380462-(859053-555571)=76980 | 806926+(539328-449222)=897032 |
| 831901-(730042-6262)=108121 | 197809-(800000-700000)=97809 |
| 47217+(323035+219877)=590129 | 842358-(625350+200000)=17008 |
| 818000+(340668-329668)=829000 | 467774+(428531+83695)=980000 |
| 884836-(849710-443916)=479042 | 616000+(73267+26128)=715395 |
| 777519-(144137+364357)=269025 | 793943-(208968+281975)=303000 |
| 302985+(489913-132285)=660613 | 908963-(347330+541792)=19841 |
| 568878+(1000000-730000)=838878 | 466146+(447956-140000)=774102 |
| 542940+(386808+19386)=949134 | 557468-(46990+164665)=345813 |
| 120000+(43979+388761)=552740 | 15951+(264347+568754)=849052 |
| 428000-(955369-877369)=350000 | 930000-(427070-93892)=596822 |
| 180000+(1000000-233160)=946840 | 920921-(120000+776034)=24887 |