diff --git a/6e/Calcul_Mental/P3/CM_18_01_15-1.pdf b/6e/Calcul_Mental/P3/CM_18_01_15-1.pdf
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diff --git a/6e/Calcul_Mental/P3/CM_18_01_15-1.tex b/6e/Calcul_Mental/P3/CM_18_01_15-1.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*}
+        43,3 + 18 + 3,4 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        2u + \frac{3}{10}u = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \LARGE Quel est le chiffre des dixièmes dans le nombre suivant?
+    \begin{eqnarray*}
+        345,89
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \LARGE
+    Quel est l'abscisse du point $A$?
+
+        \begin{tikzpicture}[scale=4]
+           \draw[->, ultra thick] (0,0) -- (2.6,0);
+            \draw (0,0) node[above] {0};
+            \draw (1,0) node[above] {1};
+            \draw (2,0) node[above] {2};
+            \draw (3,0) node[above] {3};
+            \draw[snake=ticks,ultra thick, segment length=1cm] (0,0) -- (2.5,0);
+
+            \draw (1.75,0) node[below] {A};
+        \end{tikzpicture}
+    
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/6e/Calcul_Mental/P3/CM_18_01_15-2.pdf b/6e/Calcul_Mental/P3/CM_18_01_15-2.pdf
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diff --git a/6e/Calcul_Mental/P3/CM_18_01_15-2.tex b/6e/Calcul_Mental/P3/CM_18_01_15-2.tex
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--- /dev/null
+++ b/6e/Calcul_Mental/P3/CM_18_01_15-2.tex
@@ -0,0 +1,62 @@
+\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*}
+        3,43 + 0,3 + 32 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        4u + \frac{5}{10}u + \frac{3}{100}u = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \LARGE Quel est le chiffre des centièmes dans le nombre suivant?
+    \begin{eqnarray*}
+        345,896
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \LARGE
+    Quel est l'abscisse du point $A$?
+
+        \begin{tikzpicture}[scale=4]
+           \draw[->, ultra thick] (0,0) -- (2.6,0);
+            \draw (0,0) node[above] {0};
+            \draw (1,0) node[above] {1};
+            \draw (2,0) node[above] {2};
+            \draw (3,0) node[above] {3};
+            \draw[snake=ticks,ultra thick, segment length=1cm] (0,0) -- (2.5,0);
+
+            \draw (0.25,0) node[below] {A};
+        \end{tikzpicture}
+    
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/6e/Calcul_Mental/P3/CM_18_01_15-3.pdf b/6e/Calcul_Mental/P3/CM_18_01_15-3.pdf
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diff --git a/6e/Calcul_Mental/P3/CM_18_01_15-3.tex b/6e/Calcul_Mental/P3/CM_18_01_15-3.tex
new file mode 100755
index 0000000..d9d51fd
--- /dev/null
+++ b/6e/Calcul_Mental/P3/CM_18_01_15-3.tex
@@ -0,0 +1,62 @@
+\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*}
+        87 + 0,34 + 1,8 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        2u + \frac{1}{10}u + \frac{8}{100}u = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \LARGE Quel est le chiffre des millièmes dans le nombre suivant?
+    \begin{eqnarray*}
+        345,896
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \LARGE
+    Quel est l'abscisse du point $A$?
+
+        \begin{tikzpicture}[scale=4]
+           \draw[->, ultra thick] (0,0) -- (2.6,0);
+            \draw (0,0) node[above] {0};
+            \draw (1,0) node[above] {1};
+            \draw (2,0) node[above] {2};
+            \draw (3,0) node[above] {3};
+            \draw[snake=ticks,ultra thick, segment length=0.8cm] (0,0) -- (2.5,0);
+
+            \draw (0.6,0) node[below] {A};
+        \end{tikzpicture}
+    
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/6e/Calcul_Mental/P3/CM_18_01_15-4.pdf b/6e/Calcul_Mental/P3/CM_18_01_15-4.pdf
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diff --git a/6e/Calcul_Mental/P3/CM_18_01_15-4.tex b/6e/Calcul_Mental/P3/CM_18_01_15-4.tex
new file mode 100755
index 0000000..9795c3f
--- /dev/null
+++ b/6e/Calcul_Mental/P3/CM_18_01_15-4.tex
@@ -0,0 +1,62 @@
+\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*}
+        3,7 + 15 + 8,2 = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    \huge
+    \begin{eqnarray*}
+        4u + \frac{8}{10}u = 
+    \end{eqnarray*}
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    \LARGE Quel est le chiffre des milliers dans le nombre suivant?
+    \begin{eqnarray*}
+        1345,896
+    \end{eqnarray*}
+    
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    \LARGE
+    Quel est l'abscisse du point $A$?
+
+        \begin{tikzpicture}[scale=4]
+           \draw[->, ultra thick] (0,0) -- (2.6,0);
+            \draw (0,0) node[above] {0};
+            \draw (1,0) node[above] {1};
+            \draw (2,0) node[above] {2};
+            \draw (3,0) node[above] {3};
+            \draw[snake=ticks,ultra thick, segment length=0.8cm] (0,0) -- (2.5,0);
+
+            \draw (1.8,0) node[below] {A};
+        \end{tikzpicture}
+    
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        \huge On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}