16 matching pairs, 32 cards + cards back. I prepared this game to provide both practice and fun, even for adults. The worksheet is completely editable / correctable. Print the back twice in different sheets and glue (laminate if you want your cards to last long), or print both sides (front and back) on tick paper. Hope it's useful! If you need more worksheets / games, visit my web store: zaildacoirano.com. Thanks for downloading and have a nice day!