The tool opens to show three bead sticks - for ones, tens and hundreds. You can add beads to these sticks by clicking on the coloured bead under the appropriate stick. You can remove single or multiple beads by dragging them to the bin, or remove all the beads by clicking ‘Clear all’.
By default, the number of beads on each stick is shown as a numerical display. You can show or hide this by clicking ‘Show all values’.
You can add more sticks to the left (e.g to add a thousands stick) by clicking the ‘+ stick’ button on the left. Similarly, you can add more sticks to the right (e.g. to add a tenths stick) by clicking the ‘+ stick’ button on the right. The ‘-stick’ buttons remove the nearest stick. You cannot remove the ones stick or the black decimal point to its right.
Clicking ‘Reset’ undoes any changes you have made and returns the tool to its default state.