Two tables side by side placed ; need to to align vertical top

One possible solution: wrap a tabular environment around the two particular tables and use the optional [t] alignment parameter of \begin{tabular}.

By the way: The tables are too large, but I did not address this issue!

\documentclass[10pt]{book}


\begin{document}%
\small
\begin{tabular}{cc}%
\begin{tabular}[t]{|c|c|c|c|c|}
\hline
$\textbf{Q\#}$&$ \textbf{Skills}$&$ \textbf{Your}$&$ \textbf{Correct}$&$ \textbf{\%of Stu.}$\\
$ $&$ \textbf{Tested}$&$ \textbf{Answer}$&$ \textbf{Answer}$&$ \textbf{answered}$\\
$ $&$ $&$ $&$ $&$ \textbf{correctly}$\\
\hline
1&1&1&1&1\\
\hline
11&11&11&11&11\\
\hline
111&111&111&111&111\\
111&111&111&111&111\\
111&111&111&111&111\\
111&111&111&111&111\\
111&111&111&111&111\\
111&111&111&111&111\\
111&111&111&111&111\\
111&111&111&111&111\\
\hline
\end{tabular} &
\begin{tabular}[t]{|c|c|c|c|c|}
\hline
$\textbf{Q\#}$&$ \textbf{Skills}$&$ \textbf{Your}$&$ \textbf{Correct}$&$ \textbf{\%of Stu.}$\\
$ $&$ \textbf{Tested}$&$ \textbf{Answer}$&$ \textbf{Answer}$&$ \textbf{answered}$\\
$ $&$ $&$ $&$ $&$ \textbf{correctly}$\\
\hline
38&38&38&38&38\\
\hline
39&39&39&39&39\\
\hline
39&39&39&39&39\\
39&39&39&39&39\\
39&39&39&39&39\\
39&39&39&39&39\\

\hline
\end{tabular} \tabularnewline
\end{tabular}

\end{document}