Choose an item, pay and give change. This concrete context teaches student how to calculate the change they get back after purchasing a product.
Press the cursor button in the toolbar to control the tool. Select items by clicking on the '>' or '<' buttons. The price is displayed below the item. Drag coins and notes to the first counter. Show the total on the counter by clicking on the eye icon in the top-right corner and click on the icon again to hide the total. Drag the change to the second counter. Show the total amount of money on the counter by clicking on the eye icon in the top-right corner. Click on the eye icon again to hide the total.
Click on the settings button to adjust the tool settings. Click on the settings button again or next to the settings menu to close the menu. To clear the counter, press the reset button.