diff --git a/notebook/JupyterNotebookGuide.ipynb b/notebook/JupyterNotebookGuide.ipynb
index 884184df15ae96a6f01e16e18ba08c87d73e0b20..c4f2b7f8d6c7c258cdfd2c4cc0bf24a2cf4d2a59 100644
--- a/notebook/JupyterNotebookGuide.ipynb
+++ b/notebook/JupyterNotebookGuide.ipynb
@@ -61,20 +61,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "600"
-      ]
-     },
-     "execution_count": 1,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
    "source": [
     "20 * 30"
    ]
@@ -117,20 +106,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "1.4142135623730951"
-      ]
-     },
-     "execution_count": 2,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
    "source": [
     "# math.sqrt (pour square root) calcule la racine carrée\n",
     "import math\n",