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%@Auteur:Véronique Glaçon\par
\begin{center}
\hspace{0.7cm} 
\ovalnode[fillstyle=solid,fillcolor=yellow]{B}{\yellow 2 $10$ 2}
\hspace{1.5cm}
\ovalnode[fillstyle=solid,fillcolor=yellow]{C}{\yellow 2 $96$ 2}
\vspace{0.3cm}
\par
\ovalnode[fillstyle=solid,fillcolor=yellow]{A}{\yellow 2 \black {$27$} \yellow 2}
\hspace{10cm}
\ovalnode[fillstyle=solid,fillcolor=yellow]{D}{\yellow 2 $32$ 2}
\vspace{0.3cm}
\par
\hspace{0.7cm} 
\ovalnode[fillstyle=solid,fillcolor=yellow]{E}{\yellow 2 $30$ 2}
\hspace{1.5cm}
\ovalnode[fillstyle=solid,fillcolor=yellow]{F}{\yellow 2 \black {$30$} \yellow 2}
\end{center}
 
\ncline[linewidth=1.3pt]{->}{A}{B}\naput{$\times4$}
\ncline[linewidth=1.3pt]{->}{B}{C}\naput{$-12$}
\ncline[linewidth=1.3pt]{->}{A}{E}\nbput{$+3$}
\ncline[linewidth=1.3pt]{->}{E}{F}\nbput{$\times\ldots$}
\ncline[linewidth=1.3pt]{->}{C}{D}\naput{$\div3$}
\ncline[linewidth=1.3pt]{->}{F}{D}\nbput{$+\ldots$}