| 280720-(666235-511457)=125942 | 29854+(837000-764460)=102394 |
| 605367+(666000-580000)=691367 | 66383+(91649+741968)=900000 |
| 958925-(312474+46451)=600000 | 645977-(508010-462033)=600000 |
| 120000+(43979+388761)=552740 | 734397-(633527-409130)=510000 |
| 703627-(538027-404706)=570306 | 686392-(65994+45787)=574611 |
| 574200+(600103-206085)=968218 | 32694+(981677-74371)=940000 |
| 751794-(664505+53937)=33352 | 29405+(175539+521130)=726074 |
| 666180-(436105+130075)=100000 | 737850-(230000+248600)=259250 |
| 101903+(155968+219150)=477021 | 183941+(876118-822400)=237659 |
| 298700+(111087+584636)=994423 | 830000-(226335+131233)=472432 |
| 435264-(330348-90041)=194957 | 839151+(896522-762000)=973673 |
| 314352+(318510+157138)=790000 | 400000-(800000-431429)=31429 |
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