| 528180-(408906-231935)=351209 | 202470-(610000-453423)=45893 |
| 840000-(32938+530476)=276586 | 306905+(862793-336579)=833119 |
| 19989+(575448-79056)=516381 | 69626+(328746+139309)=537681 |
| 322538+(737910-184448)=876000 | 370178+(674996-290000)=755174 |
| 1000000-(343860-227280)=883420 | 950725-(387643+200000)=363082 |
| 431978+(158074+132515)=722567 | 814184-(202000-146529)=758713 |
| 693915-(180000+470733)=43182 | 990000-(638495-548495)=900000 |
| 819771-(58389+339150)=422232 | 44391+(103047+52562)=200000 |
| 54871+(710000+137983)=902854 | 60452+(324036+150384)=534872 |
| 609265-(18102+237412)=353751 | 103797+(425376+100827)=630000 |
| 487682+(809178-741909)=554951 | 781686-(540000-200000)=441686 |
| 562330+(750724-506384)=806670 | 842358-(625350+200000)=17008 |
