This game requires a deck of cards with all face cards removed. All cards are face value with aces being one. Two to six people may play but works best with four.

Player #1 lays out four cards face up. The first player to find a combination equaling 12 calls “Twinks” and takes all the cards in the combination plus any cards in the underneath piles. All four number operations may be used. If someone calls “Twinks” incorrectly and is challenged, that player forfeits all cards to challenger.

EXAMPLE:

Player one turns over an 8, player two a 4, player three a 2 and player four a 5. Player three calls “Twinks” and says eight times two minus four is twelve and collects all three cards (plus any cards that may be under those piles).

The player with the most cards at the end of the game is the winner.

from:

http://washmath.org/files/GamesAndActivities.pdf