diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-1.pdf b/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-1.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-1.tex b/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-1.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*}
+        99,9 + 1,1 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        3 \times \ldots = 33
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        6(4 + 6) + 3 = 
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \LARGE
+    On sait que $AB = 3cm$ et $BC = 4cm$
+
+    \includegraphics[scale=0.9]{./fig/segABC}
+
+    Quelle est la longueur de $AC$?
+
+    
+    
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-2.pdf b/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-2.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-2.tex b/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-2.tex
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+++ b/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-2.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*}
+        100 -  0,5 = ...
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        6 \times \ldots = 66
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        3 + 2(10 - 5) = 
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \LARGE
+    On sait que $AB = 4cm$ et $AC = 10cm$
+
+    \includegraphics[scale=0.9]{./fig/segABC}
+
+    Quelle est la longueur de $BC$?
+
+    
+    
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-3.pdf b/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-3.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-3.tex b/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-3.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*}
+        9000 - 10 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        9 \times \ldots = 45
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        30 - 5 (2 + 3) = 
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \LARGE
+    On sait que $AC = 5cm$ et $BC = 1cm$
+
+    \includegraphics[scale=0.9]{./fig/segABC}
+
+    Quelle est la longueur de $AB$?
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-4.pdf b/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-4.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-4.tex b/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-4.tex
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--- /dev/null
+++ b/3ePasserelles/Calcul_Mental/P2/CM_17_11_06-4.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*}
+        990 - 180,1 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        2 \times \ldots = 22
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        4 + 10 (3 + 5) =
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \LARGE
+    On sait que $AB = 7cm$ et $BC = 4cm$
+
+    \includegraphics[scale=0.9]{./fig/segABC}
+
+    Quelle est la longueur de $AC$?
+
+    
+    
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/3ePasserelles/Calcul_Mental/P2/fig/segABC.pdf b/3ePasserelles/Calcul_Mental/P2/fig/segABC.pdf
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