\[\boxed{\mathbf{98}.}\]
\[1)\ \sqrt{8a^{5}} = 2a^{2}\sqrt{2a}\]
\[2)\ \sqrt{\frac{2}{9}b^{2}} = - \frac{1}{3}b\sqrt{2}\]
\[3)\ \sqrt{27a^{3}b^{3}} = 3ab\sqrt{3ab}\]
\[4)\ \sqrt{0,32a^{2}b^{3}} = - 0,4ab\sqrt{2b}\]
\[5)\ \sqrt{16a^{3}b^{5}} = - 4ab^{2}\sqrt{\text{ab}}\]
\[6)\ \sqrt{\frac{1}{9}a^{5}b^{6}} = - \frac{1}{3}a^{2}b^{3}\sqrt{a}\]