1)(6543508+34592):9-700900*70:100 = 240270
1.6543508+34592=6578100
2.6578100/9=730900
3.700900*70=4906300
4.4906300:100=490630
5.730900-490630=240270
2)81650204-(54867+295*60):9+2989685 = 84631826
1.295*60=17700
2.17700+54867=72567
3.72567:9=8063
4.81650204-8063=81642141
5.81642141+2989685=84631826