I Knew That "The Math Card Game" Subtraction Version

I Knew That "The Math Card Game" Subtraction Version is for elementary school age children. These games have a problem set and a solution set of cards. Unlike flash cards, children actually match the solutions to the problems. They not only do the thought portion of it, but they actually see the solutions in front of them and match them to the problems. Instructions are included with an answer key. Each game comes with Smarties Candies, Be A "SMARTIE" Play I Knew That.