[填空题]
A water tank is the shape of a cube9eqlj;x5ew 5l;u e-lrxb5 os7 with sides op+g0ggxi- 8uj *cz4ih f $3.00 \mathrm{~m}$. 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.)