几道数学计算题7/4÷7/8-2/3×(-6) -0.125÷1/4×(-8) (-10/3)×(-2.5)×4×(-3/10) (-5)×(-0.75)-(-5)×0.125+(-5)×(0.125)

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几道数学计算题7/4÷7/8-2/3×(-6)-0.125÷1/4×(-8)(-10/3)×(-2.5)×4×(-3/10)(-5)×(-0.75)-(-5)×0.125+(-5)×(0.125)几道

几道数学计算题7/4÷7/8-2/3×(-6) -0.125÷1/4×(-8) (-10/3)×(-2.5)×4×(-3/10) (-5)×(-0.75)-(-5)×0.125+(-5)×(0.125)
几道数学计算题
7/4÷7/8-2/3×(-6) -0.125÷1/4×(-8)
(-10/3)×(-2.5)×4×(-3/10)
(-5)×(-0.75)-(-5)×0.125+(-5)×(0.125)

几道数学计算题7/4÷7/8-2/3×(-6) -0.125÷1/4×(-8) (-10/3)×(-2.5)×4×(-3/10) (-5)×(-0.75)-(-5)×0.125+(-5)×(0.125)
7/4÷7/8-2/3×(-6)=7/4*8/7-2/3*(-6)=2+4=6
-0.125÷1/4×(-8)=-0.125*(-8)÷1/4 =1*4=4
(-10/3)×(-2.5)×4×(-3/10)
=(-10/3)×(-3/10)×(-2.5)×4
=1*(-10)
=-10
(-5)×(-0.75)-(-5)×0.125+(-5)×(0.125)
=(-5)*(-0.75-0.125+0.125)
=(-5)*(-0.75)
=3.75

6
8
10
3.75

7/4÷7/8-2/3×(-6)=7/4*8/7+2/3×6=2+4=6
-0.125÷1/4×(-8)=0.125×4×8=4
(-10/3)×(-2.5)×4×(-3/10)=-10/3×2.5×4×3/10=-10
(-5)×(-0.75)-(-5)×0.125+(-5)×(0.125)
=(-5)×(-0.75-0.125+0.125)
=-5×(-0.75)
=3.75