With endless challenges, Sumoku is pure arithmetic fun. In this crossword-style game, players arrange numbered tiles in rows or columns that add up to multiples of a number shown on the die.

To play: tiles are divided among the players. The first player rolls the die. He/she then places one or more tiles in a row wherein the total of the tiles played equals a multiple of the number rolled on the die. So, if you roll the number "5", you play tiles that add up to 5 or 10 or 15 or 20, and so on.

Every move involves addition and multilication/division. Very, very fun for ages 9+! Comes in colorful, zipper bag.