[填空题]
A water tank is the shapo3oyia s7t,5z8 gzho +e of a 9p65,wjb4 7 jvoo :lnlsvxd w1cube 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.)