| 400000-(835434-442934)=7500 | 210696+(752688-303384)=660000 |
| 428922-(100000+28922)=300000 | 172083+(644108-104324)=711867 |
| 800000-(348564+221436)=230000 | 525283-(758634-710853)=477502 |
| 447069+(864034-785360)=525743 | 441518-(398680-211518)=254356 |
| 623731+(536057-309788)=850000 | 260888+(234800+106800)=602488 |
| 773795-(174281+340000)=259514 | 430580+(6632+276620)=713832 |
| 211000+(19646+682020)=912666 | 41035+(751884+52895)=845814 |
| 683796-(824855-591266)=450207 | 898916-(859193+14002)=25721 |
| 988330-(611514+286425)=90391 | 697619-(358209+239410)=100000 |
| 246992+(215955+373483)=836430 | 700837-(863932-319111)=156016 |
| 527014+(669685-360292)=836407 | 555902-(816474-445535)=184963 |
| 665766+(844969-806715)=704020 | 300000+(7414+118815)=426229 |
