Question

вычислите удобным способом:
1) (-8)×(-1/4)×(-5)
2) (-0,25)×(-7)×(-4)
3) (-5/9)×(-10)×(-3/5)

Answer 1

1) (-8)×(-1/4)×(-5)=(-8)×(-5)=40×(-1/4)=-10
2) (-0,25)×(-7)×(-4)=(-0,25)×(-4)=1×(-7)=-7
3) (-5/9)×(-10)×(-3/5)=(-5/9)×(-3/5)=(-1/3)×(-10)=10/3