Home Schooling with Mathtornado: The Ultimate Fun-Filled Math Card Game for Teaching and Learning

About MathTornado, from BoardGameGeek:

MathTornado is a card game for 1 to 5 players. In the game the player solve simultaneously math calculations in the range of 1-20 and lay down cards. Each card played changes all possible solutions and this creates a lot of action. The player who gets rid of his cards first is the winner.