[填空题]
A water tank is the shape of a cube wi6h*av- rcjnm -zth*4 b +filz9th sides ou;6+. qm 7+ mcgjyo zb0o+ojgy0qo8nrf $3.00 \mathrm{~m}$. 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.)