Unlike a lot of math equation card games, this one has a little story built in that involves the Whozits and the danger of being destroyed by the Green Goo. Players do their best to stop the advance of the Green Goo by making equations—but watch out. Your opponent can snap a negative card on your card and change everything! There are steal cards, too! There are lots of rules, opportunities to use all four operations, as in addition, subtractions, multiplication and division. Once players have the hang of it, strategy can step in and save the Whozits in Wherezit. 8 & up.

Age: Early School Years, Later School Years. Award Year: 2012.