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)](/uploads/image/z/1848374-62-4.jpg?t=%E5%87%A0%E9%81%93%E6%95%B0%E5%AD%A6%E8%AE%A1%E7%AE%97%E9%A2%987%2F4%C3%B77%2F8-2%2F3%C3%97%EF%BC%88-6%EF%BC%89+-0.125%C3%B71%2F4%C3%97%EF%BC%88-8%EF%BC%89+%EF%BC%88-10%2F3%EF%BC%89%C3%97%28-2.5%29%C3%974%C3%97%EF%BC%88-3%2F10%EF%BC%89+%EF%BC%88-5%EF%BC%89%C3%97%EF%BC%88-0.75%EF%BC%89-%EF%BC%88-5%EF%BC%89%C3%970.125%2B%EF%BC%88-5%EF%BC%89%C3%97%EF%BC%880.125%EF%BC%89)
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