200 – 80 / 2 + 6 = 16680/2=40200-40=160160+6=166 (300 – 90) / 3 + 7 = 77300-90=210210/3=7070+7=77 600 – 120 / (4 + 2) = 5804+2=6120/6=20600-20=580 905 – 359 × 2 = 187359*2=718905-718=187 801 – 198 × 4 = 9198*4=792801-792=9 703 – 135 × 5 = 28135*5=675703-675=28552:8=69836:4=209978:3=326