| 29443+(909800-765923)=173320 | 162881+(456119+359852)=978852 |
| 645977-(508010-462033)=600000 | 90361-(500000-486667)=77028 |
| 744510-(613013-246447)=377944 | 140000+(96297+113703)=350000 |
| 680024+(804000-629642)=854382 | 868148-(383008+435983)=49157 |
| 993712-(516328+320546)=156838 | 789225+(37308+34423)=860956 |
| 942914-(630655-547741)=860000 | 259242+(953998-698000)=515240 |
| 379454+(890361-366815)=903000 | 472476-(26877+100000)=345599 |
| 81221+(400000+173387)=654608 | 80000+(725028-128921)=676107 |
| 342000-(5220+220000)=116780 | 884214-(218068-63854)=730000 |
| 312349+(917002-450874)=778477 | 385665+(140911+380000)=906576 |
| 700000-(252326-59920)=507594 | 558318-(117328+415561)=25429 |
| 61470+(338475+410055)=810000 | 923527-(272360+244167)=407000 |