Using this cash register toy is super easy. First, pick out the groceries you want from the included screen cards. Put them on the screen. Then, use the solar - powered calculator to work out how much they cost. You can either use the bank card and scan it with the scanner that has light and sound effects to pay, or you can take cash payments. If you take cash, open the cash drawer by pressing the red button and give the right change. Remember, you need to buy 2 AA batteries to power this toy as they are not included. Keep it away from water and rough play to make it last. When not in use, store it in a dry place. You can also encourage your kids to use the stickers to make their grocery list unique and have more fun while learning about money and math.