From the publisher's website: Ages 5+. An educational award winner, Equazzle successfully combines what kids think are total opposites: Math and Fun! The 5 to 8-year-old plays Equazzle using the addition and subtraction side of the board, while the reverse side reinforces multiplication skills and introduces negative numbers to the 8+ set. The playing pieces can be used as a perpetual puzzle for youngsters starting as early as age 3.

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