200-80:2+6=

(300-90) : 3+7=

600-120: (4+2) =

905-359•2=

801-198•4=

703-135•5=

552:8=

836:4=

978:3=

помогите решить примеры.

200-80:2+6=166

1) 80:2=40

2) 200-40=160

3) 160+6=166

(300-90) : 3+7=77

1) 300-90=210

2) 210:3=70

3) 70+7=77

600-120: (4+2) = 580

1) 4+2=6

2) 120:6=20

3) 600-20=580

905-359*2=187

1) 359*2=718

2) 905-718=187

801-198*4=9

1) 198*4=792

2) 801-792=9

703-135*5=28

1) 135*5=675

2) 703-675=28

552:8=69

836:4=209

166,77,580,187,9,28,69,209,326.