| 591648-(449064+132844)=9740 | 339541-(590480-30939)=-220000 |
| 70000-(600000+26620)=-556620 | 140000-(662476-163253)=-359223 |
| -416237+(562000-767902)=-622139 | 375259+(-395472-496432)=-516645 |
| -8000+(-431411-489869)=-929280 | -166305+(-447668+462970)=-151003 |
| -62479-(966686-122387)=-906778 | 100000+(478757-480083)=98674 |
| 609691+(-435281-924410)=-750000 | -838487-(-816757-241730)=220000 |
| 280196+(141385-467035)=-45454 | -75185-(556308-121493)=-510000 |
| -22507+(-973013+678520)=-317000 | 817351-(-99356+414900)=501807 |
| -792076-(-733676-735624)=677224 | 573472-(-768000+581999)=759473 |
| -325260+(-172426+227686)=-270000 | -764107-(-402003+254600)=-616704 |
| -480243-(-393503-0)=-86740 | 974131+(-3313-565000)=405818 |
| -21467-(400528+533368)=-955363 | 130000-(-66203-411757)=607960 |