This listing is a fun shopping center that provides students with an engaging, real life, adventure into adding. Students simply gather item cards as if they were shopping at the store. They write down the name and cost of the item on the receipt worksheets provided. This product includes two shopping mats, 5 different receipt worksheets and over 100 shopping cards per set. (One set includes lower dollar amounts for younger students and the other set has higher amounts for older students.) There are also labels for each shopping department in case you want to store them in separate bins (I use plastic ziplock tubs). I also found real mini shopping carts at Hobby Lobby in the party section in April of 2017 that inspired this product. They are adorable! HAVE FUN!