一个形状是长方体的铁皮油箱,从里面量长50cm,宽30cm,高25cm,这个油箱的容积是多少升?
3÷ ==0.75=6: = %
3÷ ==0.6=6: = %.
3:5==9: == .
=0.375=12÷ = %=0.45= %= ÷ .
= ÷ = = % ÷ =0.25== %