This drawing should help to create tasks. No random numbers are generated, but you can move[br]the dots and see the value on different variants. So you can come up with tasks/numbers without having to think too much. [br][br]·        You could take a screenshot of the number line, then maybe hide the texts. Then[br]maybe use a placeholder. [br]·        You could just use the numbers. [br]·        If you also hide the points (would be another potential feature) you could also[br]use the number line to enter. With the [b]kgV[/b] you set which denominator there can be. With abbreviation switched on, then the[br]numbers are also in abbreviated form, so that it is not too easy. You can switch between [b]shortened[/b] or not, as well as [b]mixed fraction[/b] or true fraction. The gray [b]side markers[/b] can be set independently of the LCM, so you may have to take some bearings with the problems, but if you don't use something totally wrong, it should be obvious be. [br][br]Of course you can also compress the x-axis (touch Shift + axis) or move the whole picture (touch[br]the background of the drawing) to get different areas.Those who know me can also report errors to me. I will probably add the hiding of the crosses ...[br]soon.Author:  [url=https://www.geogebra.org/u/birgit+lachner]Birgit Lachner[br]https://www.geogebra.org/m/jymbmbtg[/url]