diff --git a/3ePasserelles/Calcul_Mental/P3/CM_18_01_15-1.pdf b/3ePasserelles/Calcul_Mental/P3/CM_18_01_15-1.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P3/CM_18_01_15-1.tex b/3ePasserelles/Calcul_Mental/P3/CM_18_01_15-1.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*}
+        43,8 + 0,2 + 12 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{center}
+        Combien font $\dfrac{3}{4}$ de 8 semaines?
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        5x + x + 4 - 1 = 
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    10 chaises pèsent 60kg.
+
+    Combien pèsent 15 chaises?
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/3ePasserelles/Calcul_Mental/P3/CM_18_01_15-2.pdf b/3ePasserelles/Calcul_Mental/P3/CM_18_01_15-2.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P3/CM_18_01_15-2.tex b/3ePasserelles/Calcul_Mental/P3/CM_18_01_15-2.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*}
+        28 + 43,5 - 10 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{center}
+        Combien font $\dfrac{4}{5}$ de 15 villes?
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        3 + 4x + 2x + 10 = 
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    3 mois d'abonnement coûtent 20\euro.
+
+    Combien coûtent 12 mois d'abonnement?
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/3ePasserelles/Calcul_Mental/P3/CM_18_01_15-3.pdf b/3ePasserelles/Calcul_Mental/P3/CM_18_01_15-3.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P3/CM_18_01_15-3.tex b/3ePasserelles/Calcul_Mental/P3/CM_18_01_15-3.tex
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+++ b/3ePasserelles/Calcul_Mental/P3/CM_18_01_15-3.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*}
+        37 + 4,43 + 2,3 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{center}
+        Combien font $\dfrac{2}{3}$ de 15 villes?
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        3x + 7 + 8x - 2 = 
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    4 mois d'abonnement coûtent 20\euro.
+
+    Combien coûtent 12 mois d'abonnement?
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}