diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_11_20-1.pdf b/3ePasserelles/Calcul_Mental/P2/CM_17_11_20-1.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_11_20-1.tex b/3ePasserelles/Calcul_Mental/P2/CM_17_11_20-1.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*}
+        45 - 49 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        \frac{10}{4} =  \frac{...}{2}
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        5(2\times10 - 10) = 
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \LARGE
+    4 fruits à pain coûtent 5€.
+    
+    Combien coûtent 12 fruits à pain?
+\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_20-2.pdf b/3ePasserelles/Calcul_Mental/P2/CM_17_11_20-2.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_11_20-2.tex b/3ePasserelles/Calcul_Mental/P2/CM_17_11_20-2.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*}
+        23 - 100 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        4 \times \frac{3}{5} = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        3 + 4 \times 5 + 10 = 
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \LARGE
+    5 camions pèsent 10tonnes
+    
+    Combien pèsent 15 camions?
+\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_20-3.pdf b/3ePasserelles/Calcul_Mental/P2/CM_17_11_20-3.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_11_20-3.tex b/3ePasserelles/Calcul_Mental/P2/CM_17_11_20-3.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*}
+        150 - 200 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        5 \times \frac{2}{3} =
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        2\times 4 - 3\times 0 + 10 = 
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \LARGE
+    6 ampoules coûtent 10\euro.
+
+    Combien coûtent 3 ampoules?
+\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_20-4.pdf b/3ePasserelles/Calcul_Mental/P2/CM_17_11_20-4.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_11_20-4.tex b/3ePasserelles/Calcul_Mental/P2/CM_17_11_20-4.tex
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--- /dev/null
+++ b/3ePasserelles/Calcul_Mental/P2/CM_17_11_20-4.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*}
+        34 - 55 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        10 \times \frac{4}{3} = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        5 \times 4 - 1 \times 4 = 
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \LARGE
+    4 fruits à pain coûtent 6€.
+    
+    Combien coûtent 2 fruits à pain?
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}