Ответ:
- \(620-140=480\); \(480:60=8\); \(8\cdot2=16\); \(16+150=166\).
- \(24+126=150\); \(150\cdot3=450\); \(450:9=50\); \(50-34=16\).
- \(8\cdot4=32\); \(32+48=80\); \(80:2=40\); \(40\cdot6=240\).
- \(620+190=810\); \(810:90=9\); \(9\cdot20=180\); \(180-180=0\).
Ответ: 1) 166; 2) 16; 3) 240; 4) 0.
