-2²-(1-1/5*0.2)÷(-2)³=?

-2²-(1-1/5*0.2)÷(-2)³=?
-2²-(1-1/5*0.2)÷(-2)³=?

-2²-(1-1/5*0.2)÷(-2)³=?
=-4-0.96/(-8)
=-4+0.12
=-3.88

=-4-(1-1/5*2/10)/(-8)
=-4-(1-1)/(-8)
=-4/(-8)
=1/2

=-4-0.996÷（-8）
=-4+0.1245
-0.3755