Have a deck of cards at home? Try this math game!

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For a twist on the traditional card game War, assign values of 1 to the ace, 11 to the jack, 12 to the queen, 13 to the king, and face value for the cards two through 10. Playing in pairs, each student lays two cards face up, then subtracts the lower number from the higher. Whoever has the higher answer wins all four cards. If the totals are the same, the players flip over two more cards and repeat until there is a winner. 

Challenge: Use the two cards to form a fraction, and then compare to see who has the larger fraction. If they are equivalent, repeat until someone wins the round. Have fun!!