[填空题]
A water tank is the shape; ab/ae8 1c+v8g -xkz/ilx1ffvb/ iee/bl:yo oxj b;;:dg(g(o3hs9es v/ ma xu,px9uwf a cube with sides of $3.00 \mathrm{~m}$. Each side is measured with an uncertainty of $1.0 \%$. What is the absolute uncertainty in the volume of the tank? (please only input numerical value without units and without the $\pm$ symbol.)