diff --git a/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-1.pdf b/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-1.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-1.tex b/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-1.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*}
+        25 = ... \times ...
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    Je peux ranger 12 chaussures dans 3 boites.
+
+    Combien de chaussure je peux ranger dans une boite?
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    Réduire l'expression
+    \[ 
+        F = 5 + 4x \times 2x + 6
+    \]
+\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]{2cm}
+                (-2,0) -- node[midway, below]{6cm}
+                (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_26-2.pdf b/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-2.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-2.tex b/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-2.tex
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--- /dev/null
+++ b/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-2.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*}
+        16 = ... \times ...
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    5 ballons coûtent 45\euro.
+
+    Combien coûte un ballon?
+    
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    Réduire l'expression
+    \[ 
+        F = 2x + 5x \times 2x + 6x
+    \]
+\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, above]{10cm}
+                (2,0) -- node[midway, below]{8cm}
+                (-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_26-3.pdf b/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-3.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-3.tex b/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-3.tex
new file mode 100755
index 0000000..e9ecadb
--- /dev/null
+++ b/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-3.tex
@@ -0,0 +1,58 @@
+\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*}
+        49 = ... \times ...
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    4 voitures pèsent 12 tonnes.
+
+    Combien pèse une voiture?
+    
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    Réduire l'expression
+    \[ 
+        F = 5x \times 2x + 6x - 4
+    \]
+\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]{5cm}
+                (2,0) -- node[midway, above]{6cm}
+                (-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_26-4.pdf b/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-4.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-4.tex b/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-4.tex
new file mode 100755
index 0000000..1fcab29
--- /dev/null
+++ b/3ePasserelles/Calcul_Mental/P4/CM_18_03_26-4.tex
@@ -0,0 +1,57 @@
+\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 ...
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    5 sacs de riz coûtent 15\euro.
+
+    Combien coûte un sac?
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    Réduire l'expression
+    \[ 
+        F = 6x \times 2x + 9 - 2
+    \]
+\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, above]{5cm}
+                (-2,0) -- node[midway, above]{4cm}
+                (2,0)  -- 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_26-1.pdf b/6e/Calcul_Mental/P4/CM_18_03_26-1.pdf
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diff --git a/6e/Calcul_Mental/P4/CM_18_03_26-1.tex b/6e/Calcul_Mental/P4/CM_18_03_26-1.tex
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--- /dev/null
+++ b/6e/Calcul_Mental/P4/CM_18_03_26-1.tex
@@ -0,0 +1,75 @@
+\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
+    \[ 
+        34 \times 6 =
+    \]
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    L'angle est-il obtus, droit ou aigus?
+    \begin{center}
+        \begin{tikzpicture}
+            \draw[very thick]
+            (-3, 3) -- (0, 0) -- (5, 0);
+        \end{tikzpicture}
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \LARGE
+    Compléter la valeur manquante
+
+    \begin{center}
+        \begin{tabular}{|c|*{2}{p{2cm}|}}
+        \hline
+        Nombre de sacs & 1 & 10 \\
+        \hline
+        Prix & 4 & ... \\
+        \hline
+    \end{tabular}
+    \end{center}
+\end{frame}
+\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]{3cm}
+                (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}
diff --git a/6e/Calcul_Mental/P4/CM_18_03_26-2.pdf b/6e/Calcul_Mental/P4/CM_18_03_26-2.pdf
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--- /dev/null
+++ b/6e/Calcul_Mental/P4/CM_18_03_26-2.tex
@@ -0,0 +1,74 @@
+\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
+    \[ 
+        52 \times 7 = 
+    \]
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    L'angle est-il obtus, droit ou aigus?
+    \begin{center}
+        \begin{tikzpicture}
+            \draw[very thick]
+            (3, 3) -- (0, 0) -- (5, 0);
+        \end{tikzpicture}
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \LARGE
+    Compléter la valeur manquante
+
+    \begin{center}
+        \begin{tabular}{|c|*{2}{p{2cm}|}}
+            \hline
+            Nombre de bonbons & 1 & 5 \\
+            \hline
+            Prix & 2 & ... \\
+            \hline
+        \end{tabular}
+    \end{center}
+\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, above]{4cm}
+                (2,0) -- node[midway, below]{2cm}
+                (0,0) -- 
+                (0,1) -- node[midway, below]{3cm}
+                (-3,1) -- node[midway, rotate=-90, below]{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}
diff --git a/6e/Calcul_Mental/P4/CM_18_03_26-3.pdf b/6e/Calcul_Mental/P4/CM_18_03_26-3.pdf
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--- /dev/null
+++ b/6e/Calcul_Mental/P4/CM_18_03_26-3.tex
@@ -0,0 +1,74 @@
+\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
+    \[ 
+        34 \times 7 = 
+    \]
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    L'angle est-il obtus, droit ou aigus?
+    \begin{center}
+        \begin{tikzpicture}
+            \draw[very thick]
+            (0, 3) -- (0, 0) -- (5, 0);
+        \end{tikzpicture}
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \LARGE
+    Compléter la valeur manquante
+
+    \begin{center}
+        \begin{tabular}{|c|*{2}{p{2cm}|}}
+            \hline
+            Nombre de bonbons & 1 & 5 \\
+            \hline
+            Prix & 4 & ... \\
+            \hline
+        \end{tabular}
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    Calculer l'aire de la figure
+    \begin{center}
+        \begin{tikzpicture}
+            \filldraw[very thick, fill=blue!60] 
+                (2,2) -- node[midway, sloped, above]{3cm}
+                (2,-1) -- node[midway, below]{3cm}
+                (0,-1) -- 
+                (0,0) -- 
+                (-1,0) -- node[midway, rotate=-90, below]{2cm}
+                (-1,2) -- node[midway, above]{3cm}
+                cycle;
+                \draw[dotted, very thick] (0,-1) -- (-1, -1) -- (-1, 0);
+        \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_26-4.pdf b/6e/Calcul_Mental/P4/CM_18_03_26-4.pdf
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--- /dev/null
+++ b/6e/Calcul_Mental/P4/CM_18_03_26-4.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
+    \[ 
+        34 \times 6 = 
+    \]
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    L'angle est-il obtus, droit ou aigus?
+    \begin{center}
+        \begin{tikzpicture}
+            \draw[very thick]
+            (3, 3) -- (0, 0) -- (5, 0);
+        \end{tikzpicture}
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \LARGE
+    Compléter la valeur manquante
+
+    \begin{center}
+        \begin{tabular}{|c|*{2}{p{2cm}|}}
+            \hline
+            Nombre de marches  & 1 & 4 \\
+            \hline
+            Hauteur & 10 & ... \\
+            \hline
+        \end{tabular}
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    Calculer l'aire de la figure
+    \begin{center}
+        \begin{tikzpicture}
+            \filldraw[very thick, fill=blue!60] 
+                (4,4) -- node[midway, rotate=80]{o} node[midway, sloped, above]{4cm}
+                (4,0) -- node[midway, rotate=-10]{o}
+                (0,0) -- 
+                (0,4) --
+                cycle;
+        \end{tikzpicture}
+    \end{center}
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}