Вычислите:

9070*9 - (5672+4098)

8100:90*320-9087

(1030-178) : 3*7

8400:600*15+790

9070*9 - (5672+4098) = 71.860

1) 5.672+4.098=9770

2) 9.070*9=81.630

3) 81.630-9.770=71.860

8100:90*320-9087=19.713

1) 8.100:90=90

2) 90*320=28.800

3) 28.800-9.087=19.713

(1030-178) : 3*7=1.988

1) 1.030-178=852

2) 852:3=284

3) 284*7=1.988

8400:600*15+790=1.000

1) 8.400:600 = 14

2) 14*15=210

3) 210+790=1.000