| 989458-(826041+122828)=40589 | 896884-(414116+410000)=72768 |
| 379454+(890361-366815)=903000 | 375379+(86630+170938)=632947 |
| 726592+(62000+151408)=940000 | 598055-(480943+61112)=56000 |
| 817571+(831693-731407)=917857 | 9328+(34699+192138)=236165 |
| 257428-(626309-548915)=180034 | 573205-(325467-72262)=320000 |
| 137765+(159000+250712)=547477 | 45859+(848128+88991)=982978 |
| 418900+(640000-580284)=478616 | 472476-(26877+100000)=345599 |
| 3833+(667000-833)=670000 | 450000-(731926-513563)=231637 |
| 790514-(510000+263129)=17385 | 757640-(284958-57960)=530642 |
| 278234+(736077-714739)=299572 | 654000+(360000-230567)=783433 |
| 400000-(948153-784359)=236206 | 280720-(666235-511457)=125942 |
| 43789+(669849+184673)=898311 | 863201-(420000+82600)=360601 |
