| -162455+(-672350+427476)=-407329 | -203096-(168425-711189)=339668 |
| 741880-(-44032+563287)=222625 | -519068+(-176000-0)=-695068 |
| 469724-(-384350-46553)=900627 | 321972-(116400-108117)=313689 |
| 209627+(758522-668149)=300000 | 930147+(-623348-382400)=-75601 |
| -620000-(-719648-607900)=707548 | -530158-(-563753-787870)=821465 |
| 405916-(796371+99545)=-490000 | -697775+(258759-530000)=-969016 |
| 335002-(832412-127410)=-370000 | -40357+(-411073-281414)=-732844 |
| -590000-(200000+70000)=-860000 | -933849+(-130397+131648)=-932598 |
| -117790-(-995099+777309)=100000 | -722516+(700000-593412)=-615928 |
| -845323-(-670000+236690)=-412013 | 916274-(-51408+676110)=291572 |
| 618359+(-388440-789919)=-560000 | 845928-(810000+142054)=-106126 |
| -68439-(465669+0)=-534108 | 140600+(-646355+550000)=44245 |
