如上
网友回答
=0.1*(1+2+...+8)+1/90*(1+2+...+9)
=3.6+1/90*45
=3.6+0.5
=4.1
网友回答
=0.1*(1+2+...+8)+1/90*(1+2+...+9)
=3.6+1/90*45
=3.6+0.5
=4.1
网友回答
=0.1*(1+2+...+8)+1/90*(1+2+...+9)
=3.6+1/90*45
=3.6+0.5
=4.1
网友回答
=0.1*(1+2+...+8)+1/90*(1+2+...+9)
=3.6+1/90*45
=3.6+0.5
=4.1