| 185789+(262950+448731)=897470 | 910000-(995913-100000)=14087 |
| 716541-(793414-329123)=252250 | 151655-(751928-633763)=33490 |
| 219866+(310000-240000)=289866 | 200400+(823168-252991)=770577 |
| 960000-(536904+314647)=108449 | 862060-(53912+63200)=744948 |
| 100848+(500000-300848)=300000 | 295917+(260000+11762)=567679 |
| 605169+(928787-538807)=995149 | 13194+(120657+406149)=540000 |
| 76400+(845413-391813)=530000 | 500000+(778413-758413)=520000 |
| 546950-(677684-674734)=544000 | 19372+(163125+617848)=800345 |
| 123625+(87515+500000)=711140 | 813085-(10988+400000)=402097 |
| 879688-(854129-589712)=615271 | 581902-(313107+268795)=0 |
| 167232-(620000-602949)=150181 | 900000-(570000+243841)=86159 |
| 150666+(427908+207239)=785813 | 799770-(123490+212905)=463375 |