\documentclass[a4paper,10pt]{classPres}
\usepackage{./horloge}

\author{}
\title{}
\date{}

\begin{document}
\begin{frame}{Calcul mental}
    \begin{center}
        \huge 30 secondes par calcul
    \end{center}
\end{frame}

\begin{frame}{Calcul 1}
    \LARGE
    \begin{center}
    \begin{tikzpicture}[cap=round, rotate=90, transform canvas={scale=0.45}]
        \clockAtick{5}{50}
    \end{tikzpicture}
    \end{center}
\end{frame}

\begin{frame}{Calcul 2}
    \huge
    \[
        7 \times \cdots = 21
    \]
\end{frame}

\begin{frame}{Calcul 3}
    \LARGE
    Compléter la valeur manquante

    \begin{center}
        \begin{tabular}{|c|*{2}{p{2cm}|}}
        \hline
        Quantité de fer & 5kg & 15kg \\
        \hline
        Prix & \ldots & 9\euro \\
        \hline
    \end{tabular}
    \end{center}
\end{frame}

\begin{frame}{Calcul 4}
    \LARGE
    Quel est le maximum?
    \begin{center}
        43,5 \hspace{2cm}
        43 \hspace{2cm}
        43,12 \hspace{2cm}
    \end{center}
\end{frame}

\begin{frame}{Fin}
    \begin{center}
        \huge On retourne son papier.
    \end{center}
\end{frame}


\end{document}