Bought this for my cat-obsessed 6-year old. We've played it ten times a day for a month now. It was easy to learn. The 3-year old plays with us-- she doesn't know all the numbers, but recognizes that the rat cards are "bad" and knows which cat pictures mark the best cards. This seems ot be helping her recognize numbers, and the 6-year old practices math adding up all her cards in the end and figuring out who has the least. The illustrations are really cute. Great purchase.