diff --git a/3ePasserelles/Calcul_Mental/P4/CM_18_03_19-1.pdf b/3ePasserelles/Calcul_Mental/P4/CM_18_03_19-1.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P4/CM_18_03_19-1.tex b/3ePasserelles/Calcul_Mental/P4/CM_18_03_19-1.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*}
+        24 = ... \times 5 + 9
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    Calculer avec la formule quand $a = 6$
+    \[ F = a^2 + 1 \]
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    Réduire l'expression
+    \[ 
+        F = 4\times 3x + 4\times 5 + 6x
+    \]
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    Calculer l'aire de la figure
+    \begin{center}
+        \begin{tikzpicture}
+            \filldraw[very thick, fill=blue!60] 
+                (-2,3) -- node[midway, sloped, below]{3cm}
+                (-2,0) -- node[midway, below]{4cm}
+                (3,0)  -- cycle;
+
+        \end{tikzpicture}
+    \end{center}
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/3ePasserelles/Calcul_Mental/P4/CM_18_03_19-2.pdf b/3ePasserelles/Calcul_Mental/P4/CM_18_03_19-2.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P4/CM_18_03_19-2.tex b/3ePasserelles/Calcul_Mental/P4/CM_18_03_19-2.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*}
+        9 + ... \times 5 = 54
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    Calculer avec la formule quand $a = 7$
+    \[ F = a^2 - 1 \]
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    Réduire l'expression
+    \[ 
+        F = 6\times 5x - 6\times7 - 10x
+    \]
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    Calculer l'aire de la figure
+    \begin{center}
+        \begin{tikzpicture}
+            \filldraw[very thick, fill=blue!60] 
+                (-2,3) -- node[midway, sloped, below]{6cm}
+                (-2,0) -- node[midway, below]{10cm}
+                (3,0)  -- cycle;
+
+        \end{tikzpicture}
+    \end{center}
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/6e/Calcul_Mental/P4/CM_18_03_19-01.pdf b/6e/Calcul_Mental/P4/CM_18_03_19-01.pdf
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diff --git a/6e/Calcul_Mental/P4/CM_18_03_19-01.tex b/6e/Calcul_Mental/P4/CM_18_03_19-01.tex
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+\documentclass[a4paper,10pt]{classPres}
+
+\usetikzlibrary{snakes}
+
+\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*}
+        3 \times 28 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \[ 144 : 3 = \]
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \LARGE
+    Je peux ranger 12 chaussures dans 3 boites.
+
+    Combien de chaussure je peux ranger dans 1 boite?
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    Calculer l'aire de la figure
+    \begin{center}
+        \begin{tikzpicture}
+            \filldraw[very thick, fill=blue!60] 
+                (-2,3) -- node[midway, sloped, below]{3cm}
+                (-2,0) -- node[midway, below]{4cm}
+                (3,0) -- (3,3) -- cycle;
+
+        \end{tikzpicture}
+    \end{center}
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/6e/Calcul_Mental/P4/CM_18_03_19-02.pdf b/6e/Calcul_Mental/P4/CM_18_03_19-02.pdf
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diff --git a/6e/Calcul_Mental/P4/CM_18_03_19-02.tex b/6e/Calcul_Mental/P4/CM_18_03_19-02.tex
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+++ b/6e/Calcul_Mental/P4/CM_18_03_19-02.tex
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+\documentclass[a4paper,10pt]{classPres}
+
+\usetikzlibrary{snakes}
+
+\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*}
+        4 \times 56 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \[ 94 : 4 = \]
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \LARGE
+    5 ballons coûtent 45\euro.
+
+    Combien coûte 1 ballon?
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    Calculer l'aire de la figure
+    \begin{center}
+        \begin{tikzpicture}
+            \filldraw[very thick, fill=blue!60] 
+                    (-2,3) -- node[midway, sloped, below]{4cm}
+                    (-2,0) -- node[midway, below]{2cm}
+                    (0,0) -- 
+                    (0,1) -- node[midway, below]{6cm}
+                    (3,1) -- node[midway, rotate=-90, above]{3cm}
+                    (3,3) -- 
+                    cycle;
+                    \draw[dotted, very thick] (0,1) -- (0, 3);
+
+        \end{tikzpicture}
+    \end{center}
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}