\[\boxed{\mathbf{754}\mathbf{.}}\]
\[1)\log_{2}16 = \log_{2}2^{4} = 4\]
\[2)\log_{2}64 = \log_{2}2^{6} = 6\]
\[3)\log_{2}2 = \log_{2}2^{1} = 1\]
\[4)\log_{2}1 = \log_{2}2^{0} = 0\]