-11.58*27.16-(-37.16)*11.58
=11.58*(-27.16)+37.16*11.58
=11.58*(-27.16+37.16)
=11.58*10
=115.8
2/7*(-5/12)-5/7*5/12-5/3*1/4
=-2/7*5/12-5/7*5/12-5/12*1
=5/12*(-2/7-5/7+1)
=5/12*0
=0
（-4）*8*（-2.5）*0.1*（-0.125）*10
=-4*2.5*8*0.125*0.1*10
=-10
-3/4*（8-4/3-0.4）
=-3/4*8+（-3/4）*（-4/3）+3/4*0.4
=-6+1+0.3
=-4.7