Try this single-player addition game! All you need is a deck of playing cards to get started. Try to find sums of 10, 20, or 30 in order to clear cards. Practice your adding, and double check your work. If you can clear all of the cards, you’ll win! "Ten-Twenty-Thirty" is a great way to have fun while practicing simple addition facts. After you've mastered the directions, check out the variations for new ways to play.
What You Need:
- One deck of playing cards (Print a deck.)
What You Do:
- Shuffle the deck. Create a row of seven cards, face up. Place two cards on top of each of the seven so you have seven piles of 3 cards each. Arrange the cards so you can see the face value of every card.
- Place the rest of the deck to the side, to be used later.
- The object of the game is to remove a pile when the sum of all of its cards is 10, 20, or 30. All face cards equal 10. For example, if a pile has an ace, 9, and jack in it, it could be removed because its sum is 20 (1 + 9 + 10). Go ahead and remove all of the piles that equal 10 to start.
- Deal a fourth card on top of every pile that remains. Remove any stacks that now equal a multiple of 10.
- Deal a fifth card on top of every pile that remains. Remove any stacks possible.
- Continue adding cards and removing stacks until your deck is depleted or the stacks have all been removed.
- If you remove all the stacks first, you have won! If your deck is emptied first, try again.
- Remove two sets of cards at once if their combined sum is a multiple of 10.
- Look for different sums, let’s say 9, 19, and 29. Or multiples of 6.