\begin {corrige}[\thechapter ]{\i }
\begin{enumerate}[label=\fcolorbox{bleu}{bleu}{\color{white}\bfseries\arabic*}]
\begin{minipage}{.49\textwidth}
\item \begin{tabular}{|Sc|Sc|}
\hline
6 & 9\\
\hline
8 & \color{bleu}$\dfrac{9\times 8}{6}=12$ \\
\hline
\end{tabular}

\medskip

\item \begin{tabular}{|Sc|Sc|}
\hline
10 & \color{bleu}$\dfrac{10\times 35}{25}=14$\\
\hline
25 & 35\\
\hline
\end{tabular}
\end{minipage}
\begin{minipage}{.49\textwidth}
\item \begin{tabular}{|Sc|Sc|}
\hline
\color{bleu}$\dfrac{56\times 27}{72}=21$ & 56\\
\hline
27 & 72\\
\hline
\end{tabular}

\medskip

\item \begin{tabular}{|Sc|Sc|}
\hline
50 & 80\\
\hline
\color{bleu}$\dfrac{30\times 50}{80}=18,75$ & 30\\
\hline
\end{tabular}
\end{minipage}
\end{enumerate}
\end {corrige}
