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(-4)×(-7)×(-25)=-(4*7*25)=-700
注:奇数个负号取负

(-3/5)×8×(-4/3)=3/5*8*4/3=32/5
注:偶数个负号取正

(-0.5)×(-1)×4/3×(-8) =-(0.5*1*4/3*8)=-16/3

、(-4)×(-7)×(-25)
=4*25*(-7)
=-7*100
=-700

二、(-3/5)×8×(-4/3)
=3/5*4/3*8
=4/5*8
=32/8

三、(-0.5)×(-1)×4/3×(-8)
=-1/2*1*4/3*8
=-4*4/3
=-16/3

1 (-4)*(-25)*(-7)
=100*(-7)
=-700
2 (-3/5)*(-4/3)*8
=4/5*8
=32/5

3 =0.5*(-8)*4/3
=(-4)*4/3
=-16/3

=28*(-25)
=-700

=(-3/5)*(-4/3)*8
=4/5*8
10

(-0.5)*(4/3)*(-8)
=3/16

、(-4)×(-7)×(-25) =-700
、(-3/5)×8×(-4/3)=32/5
、(-0.5)×(-1)×4/3×(-8)=-16/3