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diff --git a/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-1.pdf b/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-1.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-1.tex b/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-1.tex
new file mode 100755
index 0000000..8cf265a
--- /dev/null
+++ b/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-1.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*}
+        87,5 + 98,3 = ...
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        43,6 - 23,3  = ...
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        5 \times ... = 30
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    Maximum de 
+    \begin{center}
+        10 \hfill 3 \hfill 7 \hfill 15
+    \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/P1/CM_17_09_25-2.pdf b/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-2.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-2.tex b/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-2.tex
new file mode 100755
index 0000000..f705e84
--- /dev/null
+++ b/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-2.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*}
+        14,4 + 12 = ...
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        45,3 - 12,8 = ...
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        4 \times ... = 20
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    Maximum de 
+    \begin{center}
+        3,5 \hfill 3,7 \hfill 3,8 \hfill 3,2
+    \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/P1/CM_17_09_25-3.pdf b/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-3.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-3.tex b/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-3.tex
new file mode 100755
index 0000000..23aec2e
--- /dev/null
+++ b/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-3.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*}
+        23 + 28,4 = ...
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        15 - 1,3 = ...
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+        28 = 4 \times ...
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    Maximum de
+    \begin{center}
+        3,55 \hfill 3,7 \hfill 3,8 \hfill 3,56
+    \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/P1/CM_17_09_25-4.pdf b/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-4.pdf
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diff --git a/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-4.tex b/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-4.tex
new file mode 100755
index 0000000..a647c6a
--- /dev/null
+++ b/3ePasserelles/Calcul_Mental/P1/CM_17_09_25-4.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*}
+        15,6 + 7,2 = ...
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        34 - 16 = ...
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \huge
+    \begin{eqnarray*}
+       ... \times 5 = 40 
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \huge
+    Maximum de
+    \begin{center}
+        2,5 \hfill 6,4 \hfill 5,7 \hfill 6
+    \end{center}
+    
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}