Пожалуйста помогите!
1) -30а×(-56)
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2а×14×(-5)

2) -2б×(-3)×125
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5×(-75б)

3) -33а×6,5б
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0,5б×1,3×(-11а)

4)-88аб×9,3
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3,1×(-6,6)×(-4аб)

-30а*(-56)                                -2б*(-3)*125_______                                 _____________2а*14*(-5)=-3*4=-12                  5*(-75б)             = - 23) -33а*6,5б                          4)  -88аб*9,3________                                  _________0,5б*1,3*(-11а)  = 3                3,1*(-6,6)*(-4аб)  = - 3:0,3=-30:3=-10