1. Remove the face cards from the deck of cards, such that only the ace through 10 of each suit remains.
• Aces count as 1s.
• Red cards are positive.
• Black cards are negative.
2. Take turns dealing the cards. Shuffle the cards and place them face down in a pile.
3. Player 1 draws three cards. Using the equation y = ax + b, let the first card represent the value of a, the second card represent the value of x, and the third card represent the value of b.
Player 2 starts the timer. Player 1 has 10 s to determine the value of y using the values of the three cards. If the y value is correct, the player is awarded 1 point.
4. Play moves to the next player.
5. Play ends when there are less than three cards in the pile. The winner is the player with the highest score.
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