[填空题]
A water tank is the shape of a cube witwrj29ztas vo6-gtybal2 +h;2 4uw -:bl3fcgzythr:1zv -d7ph 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.)