| 479830-(650000-640891)=470721 | 261145-(134191+26954)=100000 |
| 821768-(742824-556000)=634944 | 873262+(353000-340000)=886262 |
| 818000+(340668-329668)=829000 | 790514-(510000+263129)=17385 |
| 117641+(867620-780000)=205261 | 669534-(118325+61209)=490000 |
| 661406-(770900-717618)=608124 | 72779+(700000+143995)=916774 |
| 315496+(675000-383496)=607000 | 729820-(262773+312399)=154648 |
| 362082-(120567+210000)=31515 | 137765+(159000+250712)=547477 |
| 737850-(230000+248600)=259250 | 393973+(291791+23911)=709675 |
| 959691-(700000-512309)=772000 | 25577+(274006+500417)=800000 |
| 130000-(604214-590000)=115786 | 12446+(128260+420000)=560706 |
| 10000+(495252+24826)=530078 | 312076+(880711-597021)=595766 |
| 501041+(786649-690000)=597690 | 682964-(663589-16578)=35953 |
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