The goal of each player is to use the numbers on each card in his hand to equal the common objective or Krypto card by simple addition, subtraction, division and multiplication and any combinations thereof. The proven fun with numbers game that reinforces basic math skills. The first player to use his five cards to match the objective card declares "Krypto". Each card must be used once, and once only. Includes 56 cards all marked differently from 1 to 25, 1 score pad, rules and instructions on how to play.