-5-【(-2)^3+(1-0.8*3/4)÷(-2)] (-5)^2÷(-125)*5/6÷(-0.5)

问题描述:

-5-【(-2)^3+(1-0.8*3/4)÷(-2)] (-5)^2÷(-125)*5/6÷(-0.5)

-5-【(-2)^3+(1-0.8*3/4)÷(-2)]
=-5-[-8+(1-0.6)÷(-2)]
=-5+8+0.2
=3.2
(-5)^2÷(-125)*5/6÷(-0.5)
=25÷(-125)×5/6÷(-1/2)
=(-1/6)÷(-1/2)
=1/3