Zoomable Number Line – MathsIsFun February 2, 2019September 12, 2021 adminFractions, Number Add to Bookmarks Zoomable Number Line – MathsIsFun Click on number line to zoom in, shift-click to zoom out. It will zoom from where you click. Click at left or right to scroll. Or you can use your keyboard’s arrow keys. Up/down to zoom, left/right to move. Open Activity