[填空题]
A water tank is the shape ofg8 jivscgx;7juk fe5) 7.lha0 a cube with sidi 96t uwx1pxt5es 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.)