diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-1.pdf b/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-1.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-1.tex b/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-1.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*}
+        23,4 + 4,2 = ..
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        2,45 - 1 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        2 + 3 \times 3 = 
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    Maximum de 
+    \begin{center}
+        3,4 \hfill 3,55 \hfill 3,23 \hfill 3,8
+    \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/P2/CM_17_10_23-2.pdf b/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-2.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-2.tex b/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-2.tex
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+++ b/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-2.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*}
+        23,4 + 120 = ...
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        12 + ... = 20
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        4(2 + 3) = 
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    Minimum de 
+    \begin{center}
+        123,4 \hfill 143,55 \hfill 12,90 \hfill 1,234
+    \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/P2/CM_17_10_23-3.pdf b/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-3.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-3.tex b/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-3.tex
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--- /dev/null
+++ b/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-3.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*}
+        65,4 - 27 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        4 \times ... = 24
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        5 (4 + 5) = 
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    Total de 
+    \begin{center}
+        100 \hfill 50 \hfill 6 
+    \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/P2/CM_17_10_23-4.pdf b/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-4.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-4.tex b/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-4.tex
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--- /dev/null
+++ b/3ePasserelles/Calcul_Mental/P2/CM_17_10_23-4.tex
@@ -0,0 +1,52 @@
+\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*}
+        65,4 + 7 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        5 \times ... = 40
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        6 \times (2 + 2) = 
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    Maximum de 
+    \begin{center}
+        23,4 \hfill 2,34 \hfill 23,12 \hfill 24
+    \end{center}
+    
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}