| 639736+(312148-81244)=870640 | 193907-(807452-761813)=148268 |
| 959846-(924122-251160)=286884 | 529168+(722221-280149)=971240 |
| 682964-(663589-16578)=35953 | 426902+(406268-33170)=800000 |
| 390000+(169573+390000)=949573 | 541344-(201612+300000)=39732 |
| 489294+(232537-131831)=590000 | 807194-(297954+397822)=111418 |
| 434963+(988551-459434)=964080 | 600000-(823462-473462)=250000 |
| 27531+(118469+530000)=676000 | 472299-(870546-868247)=470000 |
| 872219-(770000+27000)=75219 | 145919+(531269+278929)=956117 |
| 950415-(210587+72718)=667110 | 621289+(196421+79884)=897594 |
| 381138+(913235-680000)=614373 | 740000-(40000+447509)=252491 |
| 510296-(900000-410419)=20715 | 246992+(215955+373483)=836430 |
| 747360-(67200+569821)=110339 | 400000+(126165+25649)=551814 |
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