帮个忙,做几道计算题,-|-0.25|×9-5)×4×(-1/25)(-8)×(1/2-5/4+1/8)(-1/12-1/36+3/4-1/6)×(-48)-13×2/3-0.34×2/7+1/3×(-13)-5/7×0.34
问题描述:
帮个忙,做几道计算题,
-|-0.25|×9-5)×4×(-1/25)
(-8)×(1/2-5/4+1/8)
(-1/12-1/36+3/4-1/6)×(-48)
-13×2/3-0.34×2/7+1/3×(-13)-5/7×0.34
答
(1)题目你输的不对
(2)=(-8)*(-5/8)=-5
(3)=(-3/36-1/36+27/36-6/36)*(-48)=-68/3
(4)=-13(2/3+1/3)-0.34(2/7+5/7)=-13-0.34=-13.34
答
第一道是:(-|-0.25|×9-5)×4×(-1/25)吗?如果是
=(-1/4*9-5)*4×(-1/25)
=(-9-20)×(-1/25)
=29/25
(2)=(-8)*(-5/8)=5
(3)=4+4/3-36+8=-68/3
(4)=-13(2/3+1/3)-0.34(2/7+5/7)=-13-0.34=-13.34