Question

-0.25 2次方÷(-2分之1)3次方+(8分之1-2分之1)

Answer 1

-0.25 2次方÷(-2分之1)3次方+(8分之1-2分之1)
=-(1/4)^2÷(-1/8)+(1/8-1/2)
=(1/16)*8+（-3/8)
=1/2-3/8
=1/8

有不会的可以再问我

追问

-5-[-3分之1-(1-0.2÷5分之3)×(-3)2] 感谢兄弟！！

追答

-5-[-3分之1-(1-0.2÷5分之3)×(-3)2]
=-5-[-(1/3)-(1-1/3)*(-3)*2]
=-5-[-(1/3)+4]
=-5-(11/3)
=-26/3

Answer 2

（-0.25）2÷（－1/2）3＋(1/8-1/2)
=1/16÷1/8＋(-3/8)
=1/2-3/8
=1/8