diff --git a/6e/Calcul_Mental/P2/CM_17_11_27-3.pdf b/6e/Calcul_Mental/P2/CM_17_11_27-3.pdf
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diff --git a/6e/Calcul_Mental/P2/CM_17_11_27-3.tex b/6e/Calcul_Mental/P2/CM_17_11_27-3.tex
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+\documentclass[a4paper,10pt]{classPres}
+
+\author{}
+\title{}
+\date{}
+
+\begin{document}
+\begin{frame}{Calcul mental}
+    \begin{center}
+        \huge 30 secondes par calcul
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 1}
+    \huge
+    \begin{eqnarray*}
+        10 - 0,5 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        1 u  + \frac{1}{2} u = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        6 \times 7 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \LARGE
+    4 fruits à pain pèsent 6kg
+
+    Combien peut contenir 6 bidons?
+    
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/6e/Calcul_Mental/P2/CM_17_11_27-4.pdf b/6e/Calcul_Mental/P2/CM_17_11_27-4.pdf
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+++ b/6e/Calcul_Mental/P2/CM_17_11_27-4.tex
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+\documentclass[a4paper,10pt]{classPres}
+
+\author{}
+\title{}
+\date{}
+
+\begin{document}
+\begin{frame}{Calcul mental}
+    \begin{center}
+        \huge 30 secondes par calcul
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 1}
+    \huge
+    \begin{eqnarray*}
+        10,5 - 5 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        1 u  + \frac{2}{4} u = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        8 \times 7 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \LARGE
+    20 stylos coûtent 6\euro
+
+    Combien coûtent 30 stylos?
+    
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/6e/Calcul_Mental/P2/CM_17_11_27-5.pdf b/6e/Calcul_Mental/P2/CM_17_11_27-5.pdf
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+++ b/6e/Calcul_Mental/P2/CM_17_11_27-5.tex
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+\documentclass[a4paper,10pt]{classPres}
+
+\author{}
+\title{}
+\date{}
+
+\begin{document}
+\begin{frame}{Calcul mental}
+    \begin{center}
+        \huge 30 secondes par calcul
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 1}
+    \huge
+    \begin{eqnarray*}
+        12 - 3,6 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        1 u  + \frac{1}{3} u = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        9 \times 3 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \LARGE
+    Je peux ranger 6 chaussures dans 2 boites.
+
+    Combien de boites me faut-il pour ranger 30 chaussures?
+    
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}