Do some Dino-mite subtraction, but watch out for predators! You never know what might lurking on the next card.
To play: Shuffle the cards and place them face down in the middle of the group of players. The first player takes a card and answers the math equation. Certain cards require you to put back a card, lose a turn, take an extra card or steal another player's card (in which the person 'stealing' the card must do the subtraction equation on the 'stolen card' to get it). When all the cards are gone, whoever have the most cards wins. These can also be used a flashcards.