[填空题]
A water tank is the sau 9:w)w j -r r6qrih8+iqn(d49ihqsthape of a cube with sides of;u2wr e,n bk27wjrr w7v*v:er $3.00 \mathrm{~m}$. 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.)