diff --git a/2nd/Questions_flashs/P2/QF_S50-1.pdf b/2nd/Questions_flashs/P2/QF_S50-1.pdf
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diff --git a/2nd/Questions_flashs/P2/QF_S50-1.tex b/2nd/Questions_flashs/P2/QF_S50-1.tex
new file mode 100755
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+\documentclass[14pt]{classPres}
+\usepackage{tkz-fct}
+
+\author{}
+\title{}
+\date{}
+
+\begin{document}
+\begin{frame}{Questions flashs}
+    \begin{center}
+        \vfill
+        2nd
+        \vfill
+        30 secondes par calcul
+        \vfill
+        \tiny \jobname
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 1}
+    % Calcul fraction
+    Faire le calcul suivant
+    \[
+        \frac{3}{5} + 2 =
+    \]
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    % Taux évolution
+    Une quantité est augmenté de 60\%.
+    \vfill
+    Par combien est-elle multipliée ?
+    \vfill
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    % Equation graphique
+    Déterminer l'image de -2.
+    \begin{center}
+        \begin{tikzpicture}[scale=0.8]
+            \tkzInit[xmin=-5,xmax=5,xstep=1,
+            ymin=-3,ymax=5,ystep=1]
+            \tkzGrid
+            \tkzAxeXY
+            \draw[very thick, color=red] plot [smooth,tension=0.5] coordinates{%
+                    (-5, 1)
+                    (-4, 3)
+                    (-3, 2)
+                    (-2, 1)
+                    (-1, 2)
+                    (0, 1)
+                    (1, 0)
+                    (2, -1)
+                    (3, 0)
+                    (4, -1)
+                    (5, 0)
+                };
+        \end{tikzpicture}
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    % Vecteurs
+    \begin{minipage}{0.3\linewidth}
+        Déterminer un vecteur égal à
+        \[
+            \vect{DA} + \vect{AF}
+        \]
+    \end{minipage}
+    \hfill
+    \begin{minipage}{0.5\linewidth}
+        \begin{tikzpicture}[scale=1]
+            %\draw (0, 0) grid (6, 6);
+            \draw (0, 0) rectangle (6, 6);
+
+            \draw (4, 5) node {x} node [above right] {$A$};
+            \draw (2, 1) node {x} node [below right] {$B$};
+            \draw (4, 1) node {x} node [below right] {$C$};
+            \draw (2, 5) node {x} node [above right] {$D$};
+            \draw (1, 3) node {x} node [above left] {$E$};
+            \draw (5, 3) node {x} node [above right] {$F$};
+
+            \draw [->, very thick] (1, 1) -- node [midway, left] {$\vect{u}$} ++(1, 2);
+            \draw [->, very thick] (1, 4) --  node [midway, below ] {$\vect{v}$} ++ (2, 0);
+        \end{tikzpicture}
+    \end{minipage}
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/2nd/Questions_flashs/P2/QF_S50-2.pdf b/2nd/Questions_flashs/P2/QF_S50-2.pdf
new file mode 100644
index 0000000..ba9f702
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diff --git a/2nd/Questions_flashs/P2/QF_S50-2.tex b/2nd/Questions_flashs/P2/QF_S50-2.tex
new file mode 100755
index 0000000..9d78e9a
--- /dev/null
+++ b/2nd/Questions_flashs/P2/QF_S50-2.tex
@@ -0,0 +1,96 @@
+\documentclass[14pt]{classPres}
+\usepackage{tkz-fct}
+
+\author{}
+\title{}
+\date{}
+
+\begin{document}
+\begin{frame}{Questions flashs}
+    \begin{center}
+        \vfill
+        2nd
+        \vfill
+        30 secondes par calcul
+        \vfill
+        \tiny \jobname
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 1}
+    % Calcul fraction
+    Faire le calcul suivant
+    \[
+        \frac{5}{2} - 3 =
+    \]
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    % Taux évolution
+    Une quantité est augmenté de 150\%.
+    \vfill
+    Par combien est-elle multipliée ?
+    \vfill
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    % Equation graphique
+    Déterminer les antécédents de 2.
+    \begin{center}
+        \begin{tikzpicture}[scale=0.8]
+            \tkzInit[xmin=-5,xmax=5,xstep=1,
+            ymin=-3,ymax=5,ystep=1]
+            \tkzGrid
+            \tkzAxeXY
+            \draw[very thick, color=red] plot [smooth,tension=0.5] coordinates{%
+                    (-5, 1)
+                    (-4, 3)
+                    (-3, 2)
+                    (-2, 1)
+                    (-1, 2)
+                    (0, 1)
+                    (1, 0)
+                    (2, -1)
+                    (3, 0)
+                    (4, -1)
+                    (5, 0)
+                };
+        \end{tikzpicture}
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    % Vecteurs
+    \begin{minipage}{0.3\linewidth}
+        Déterminer un vecteur égal à
+        \[
+            \vect{BC} + \vect{u}
+        \]
+    \end{minipage}
+    \hfill
+    \begin{minipage}{0.5\linewidth}
+        \begin{tikzpicture}[scale=1]
+            %\draw (0, 0) grid (6, 6);
+            \draw (0, 0) rectangle (6, 6);
+
+            \draw (4, 5) node {x} node [above right] {$A$};
+            \draw (2, 1) node {x} node [below right] {$B$};
+            \draw (4, 1) node {x} node [below right] {$C$};
+            \draw (2, 5) node {x} node [above right] {$D$};
+            \draw (1, 3) node {x} node [above left] {$E$};
+            \draw (5, 3) node {x} node [above right] {$F$};
+
+            \draw [->, very thick] (1, 1) -- node [midway, left] {$\vect{u}$} ++(1, 2);
+            \draw [->, very thick] (1, 4) --  node [midway, below ] {$\vect{v}$} ++ (2, 0);
+        \end{tikzpicture}
+    \end{minipage}
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}
diff --git a/2nd/Questions_flashs/P2/QF_S50-3.pdf b/2nd/Questions_flashs/P2/QF_S50-3.pdf
new file mode 100644
index 0000000..60bbf24
Binary files /dev/null and b/2nd/Questions_flashs/P2/QF_S50-3.pdf differ
diff --git a/2nd/Questions_flashs/P2/QF_S50-3.tex b/2nd/Questions_flashs/P2/QF_S50-3.tex
new file mode 100755
index 0000000..cf6fb91
--- /dev/null
+++ b/2nd/Questions_flashs/P2/QF_S50-3.tex
@@ -0,0 +1,96 @@
+\documentclass[14pt]{classPres}
+\usepackage{tkz-fct}
+
+\author{}
+\title{}
+\date{}
+
+\begin{document}
+\begin{frame}{Questions flashs}
+    \begin{center}
+        \vfill
+        2nd
+        \vfill
+        30 secondes par calcul
+        \vfill
+        \tiny \jobname
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 1}
+    % Calcul fraction
+    Faire le calcul suivant
+    \[
+        1 + \frac{3}{5} =
+    \]
+\end{frame}
+
+\begin{frame}{Calcul 2}
+    % Taux évolution
+    Une quantité est diminué de 90\%.
+    \vfill
+    Par combien est-elle multipliée ?
+    \vfill
+\end{frame}
+
+\begin{frame}{Calcul 3}
+    % Equation graphique
+    Déterminer les antécédents de 0.
+    \begin{center}
+        \begin{tikzpicture}[scale=0.8]
+            \tkzInit[xmin=-5,xmax=5,xstep=1,
+            ymin=-3,ymax=5,ystep=1]
+            \tkzGrid
+            \tkzAxeXY
+            \draw[very thick, color=red] plot [smooth,tension=0.5] coordinates{%
+                    (-5, 1)
+                    (-4, 3)
+                    (-3, 2)
+                    (-2, 1)
+                    (-1, 2)
+                    (0, 1)
+                    (1, 0)
+                    (2, -1)
+                    (3, 0)
+                    (4, -1)
+                    (5, 0)
+                };
+        \end{tikzpicture}
+    \end{center}
+\end{frame}
+
+\begin{frame}{Calcul 4}
+    % Vecteurs
+    \begin{minipage}{0.3\linewidth}
+        Déterminer un vecteur égal à
+        \[
+            \vect{ED} + \vect{BC}
+        \]
+    \end{minipage}
+    \hfill
+    \begin{minipage}{0.5\linewidth}
+        \begin{tikzpicture}[scale=1]
+            %\draw (0, 0) grid (6, 6);
+            \draw (0, 0) rectangle (6, 6);
+
+            \draw (4, 5) node {x} node [above right] {$A$};
+            \draw (2, 1) node {x} node [below right] {$B$};
+            \draw (4, 1) node {x} node [below right] {$C$};
+            \draw (2, 5) node {x} node [above right] {$D$};
+            \draw (1, 3) node {x} node [above left] {$E$};
+            \draw (5, 3) node {x} node [above right] {$F$};
+
+            \draw [->, very thick] (1, 1) -- node [midway, left] {$\vect{u}$} ++(1, 2);
+            \draw [->, very thick] (1, 4) --  node [midway, below ] {$\vect{v}$} ++ (2, 0);
+        \end{tikzpicture}
+    \end{minipage}
+\end{frame}
+
+\begin{frame}{Fin}
+    \begin{center}
+        On retourne son papier.
+    \end{center}
+\end{frame}
+
+
+\end{document}