diff --git a/src/activities/gletters/Gletters.qml b/src/activities/gletters/Gletters.qml
--- a/src/activities/gletters/Gletters.qml
+++ b/src/activities/gletters/Gletters.qml
@@ -21,6 +21,7 @@
  */
 
 import QtQuick 2.6
+import QtQuick.Controls 1.5
 import GCompris 1.0
 
 import "../../core"
@@ -32,14 +33,18 @@
     // Overload this in your activity to change it
     // Put you default-<locale>.json files in it
     property string dataSetUrl: "qrc:/gcompris/src/activities/gletters/resource/"
-    /* no need to display the configuration button for smallnumbers */
-    property bool configurationButtonVisible: true
 
     property bool uppercaseOnly: false
 
     /* mode of the activity, "letter" (gletters) or "word" (wordsgame):*/
     property string mode: "letter"
 
+    // To show or hide a config option
+    property var useConfig: {
+        "useNumberLimit": false,
+        "useUpperCaseBox": true
+    }
+
     // Override if you want to replace texts by your image
     function getImage(key) {
         return ""
@@ -88,6 +93,7 @@
             property alias bar: bar
             property alias bonus: bonus
             property alias wordlist: wordlist
+            property int numberLimit: 3
             property alias score: score
             property alias keyboard: keyboard
             property alias wordDropTimer: wordDropTimer
@@ -127,6 +133,7 @@
                 Item {
                     property alias localeBox: localeBox
                     property alias uppercaseBox: uppercaseBox
+                    property alias numberLimitSlider: numberLimitSlider
                     height: column.height
 
                     property alias availableLangs: langs.languages
@@ -151,10 +158,37 @@
                         }
                         GCDialogCheckBox {
                             id: uppercaseBox
+                            visible: activity.useConfig["useUpperCaseBox"]
                             width: dialogActivityConfig.width
                             text: qsTr("Uppercase only mode")
                             checked: activity.uppercaseOnly
                         }
+                        Flow {
+                            visible: activity.useConfig["useNumberLimit"]
+                            spacing: 5
+                            width: dialogActivityConfig.width
+                            GCSlider {
+                                id: numberLimitSlider
+                                width: 250 * ApplicationInfo.ratio
+                                maximumValue: 10
+                                minimumValue: 3
+                                value: items.numberLimit
+                                onValueChanged: numberLimitText.text
+                                scrollEnabled: false
+                            }
+                            GCText {
+                                id: numberLimitText
+                                text: qsTr("Maximum Number Limit: %1").arg(numberLimitSlider.value)
+                                fontSize: mediumSize
+                                wrapMode: Text.WordWrap
+                            }
+                            Button {
+                                height: 30 * ApplicationInfo.ratio
+                                text: qsTr("Default");
+                                style: GCButtonStyle {}
+                                onClicked: numberLimitSlider.value = 3.0
+                            }
+                        }
                     }
                 }
             }
@@ -164,6 +198,7 @@
                 if(dataToSave && dataToSave["locale"]) {
                     background.locale = dataToSave["locale"];
                     activity.uppercaseOnly = dataToSave["uppercaseMode"] === "true" ? true : false;
+                    items.numberLimit = dataToSave["numberLimit"];
                 }
             }
             onSaveData: {
@@ -176,7 +211,11 @@
 
                 var oldUppercaseMode = activity.uppercaseOnly
                 activity.uppercaseOnly = dialogActivityConfig.configItem.uppercaseBox.checked
-                dataToSave = {"locale": newLocale, "uppercaseMode": ""+activity.uppercaseOnly}
+
+                var oldNumberLimit = items.numberLimit
+                items.numberLimit = dialogActivityConfig.configItem.numberLimitSlider.value
+
+                dataToSave = {"locale": newLocale, "uppercaseMode": ""+activity.uppercaseOnly, "numberLimit": items.numberLimit}
 
                 background.locale = newLocale;
                 // Restart the activity with new information
@@ -210,7 +249,7 @@
         Bar {
             id: bar
             anchors.bottom: keyboard.top
-            content: BarEnumContent { value: configurationButtonVisible ? (help | home | level | config) : (help | home | level)}
+            content: BarEnumContent { value: (help | home | level | config)}
             onHelpClicked: {
                 displayDialog(dialogHelp)
             }
diff --git a/src/activities/gletters/gletters.js b/src/activities/gletters/gletters.js
--- a/src/activities/gletters/gletters.js
+++ b/src/activities/gletters/gletters.js
@@ -290,20 +290,22 @@
 
         var word
 
-        if(items.ourActivity.getImage(text)) {
+        var modText = parseInt(text) % items.numberLimit + ""
+
+        if(items.ourActivity.getImage(modText)) {
             word = wordComponent.createObject( items.background,
                 {
-                    "text": text,
-                    "image": items.ourActivity.getImage(text),
+                    "text": modText,
+                    "image": items.ourActivity.getImage(modText),
                     // assume x=width-25px for now, Word auto-adjusts onCompleted():
                     "x": Math.random() * (items.main.width - 25),
                     "y": -25,
                 });
-        } else if(items.ourActivity.getDominoValues(text).length) {
+        } else if(items.ourActivity.getDominoValues(modText).length) {
             word = wordComponent.createObject( items.background,
                 {
-                    "text": text,
-                    "dominoValues": items.ourActivity.getDominoValues(text),
+                    "text": modText,
+                    "dominoValues": items.ourActivity.getDominoValues(modText),
                     // assume x=width-25px for now, Word auto-adjusts onCompleted():
                     "x": Math.random() * (items.main.width - 25),
                     "y": -25,
diff --git a/src/activities/smallnumbers/Smallnumbers.qml b/src/activities/smallnumbers/Smallnumbers.qml
--- a/src/activities/smallnumbers/Smallnumbers.qml
+++ b/src/activities/smallnumbers/Smallnumbers.qml
@@ -29,8 +29,12 @@
     id: activity
 
     mode: "letter"
+    useConfig: {
+        "useNumberLimit": true,
+        "useUpperCaseBox": false
+    }
+
     dataSetUrl: "qrc:/gcompris/src/activities/smallnumbers/resource/"
-    configurationButtonVisible: false
 
     function getImage(key) {
         return dataSetUrl + "dice" + key + ".svg"
diff --git a/src/activities/smallnumbers2/Smallnumbers2.qml b/src/activities/smallnumbers2/Smallnumbers2.qml
--- a/src/activities/smallnumbers2/Smallnumbers2.qml
+++ b/src/activities/smallnumbers2/Smallnumbers2.qml
@@ -29,8 +29,11 @@
     id: activity
 
     mode: "letter"
+    useConfig: {
+        "useNumberLimit": true,
+        "useUpperCaseBox": false
+    }
     dataSetUrl: "qrc:/gcompris/src/activities/smallnumbers2/resource/"
-    configurationButtonVisible: false
 
     function getDominoValues(key) {
         var val1 = Math.floor(Math.random() * key)