| 288016-(215409-79950)=152557 | 616582-(966870-774053)=423765 |
| 646989-(8607+508704)=129678 | 475300+(688353-230690)=932963 |
| 908974-(896520-680000)=692454 | 900000-(171000+219000)=510000 |
| 596799-(268314+257810)=70675 | 103000+(335805+117459)=556264 |
| 456333-(253506+167000)=35827 | 16221+(229275+482383)=727879 |
| 81750+(615293+60000)=757043 | 434963+(988551-459434)=964080 |
| 297668+(976987-628447)=646208 | 80000-(353097-273097)=0 |
| 405240-(141548-36308)=300000 | 613277+(280977-244254)=650000 |
| 975200-(807526-200000)=367674 | 900000-(211630+250000)=438370 |
| 423681+(680000-303681)=800000 | 988330-(611514+286425)=90391 |
| 780000+(190000+30000)=1000000 | 294993+(874188-170000)=999181 |
| 395672+(141289+133881)=670842 | 455780+(254025+170039)=879844 |
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