Measurement Conversion Game

What You Do:

1. Shuffle the deck and place it face down in the center of the playing area. For the sake of this game, aces = 1, jacks = 11, queens = 12, and kings = 13.
2. The dealer turns the first card face up and places it on the table. The first player to covert the value of the card from centimeters to millimeters wins the card. (For example, if the card is a 4, players would race to say "40 millimeters," because 4 cm x 10 = 40 mm.)
3. The winner of each round gets to flip the card over for the next round.
4. Play until the deck runs out. The person with the most cards wins.

Variation:

Change the conversion you are using. Try converting meters to kilometers ( m x 100 = km) or grams to kilograms ( g x 100 = kg).