1) (98221-8028)*100+98098=9 117 398
1. 98221-8028=90193
2. 90193*100=9019300
3. 9019300+98098=9117398
2) (30000-400*25)/125+16=176
1. 400*25=10000
2. 30000-10000=20000
3. 20000:125=160
4. 160+16=176
3) 5090*64-122330+8670=212100
1. 5090*64=325760
2. 325760-122330=203430
3. 203430+8670=212100