# War- A Math Card Game

Anything with the title “War” gets a thumbs up with my boys. War, a common card game, has a lot of mathematic potential!

**The Basics of War**

Supplies: Standard deck of playing cards with 52 cards

Number of Players: Two

Length of Time: 15-45 minutes (depending on level)

Goal: To win all of the cards

Basic rules:

- Shuffle the deck of cards.
- Deal the cards so that each player has 26 cards. Players keep their cards in front of them, face down.
- Each player simultaneously flips over their top card. The player with the highest card wins both cards.
- If the players have the same card (a tie), there is a war.
- Each player places three cards in front of them, face down.
- Flip over a fourth card.
- The player with the highest card wins every card (all ten cards in the middle of the table.)

- The first person to win all of the cards wins the game.

**Preschool/Kindergarten Math**

Goal: To help the child recognize and compare numbers 2-10

- Remove all of the face cards, jokers, and aces so that the deck only contains numbers 2-10.
- Play the game as described above, but with less cards.
- As you play, ask these questions:
- What number do you have?
- What number do I have?
- Which number is greater….is more?
- Which number is smaller….is less?

- If necessary, provide a manipulative to help the child decide which number is greater.
- Place two bears next to the two playing card and place five bears next to the five playing card.
- Which card has more bears?

**Lower Elementary Math Game**

Goal: To help the child practice addition and multiplication math facts.

- Remove all of the face cards, jokers, and aces so that the deck only contains numbers 2-10.
- Play the game as described above, except each player will draw two cards from the top of the deck.
- If practicing addition facts, the player will add the two numbers on the cards.
- If practicing multiplication facts, the player will multiply the two numbers on the cards.
- The person with the highest sum or product wins all four cards.
- If necessary, use manipulatives to illustrate the math problems.
- “My first factor is five, so I will get five cubes. My second factor is two, so that is telling me that I will have two groups of five cubes. How many cubes do I have altogether?”

**Upper Elementary Math Game**

- Remove all of the face cards, jokers, and aces so that the deck only contains numbers 2-10.
- Play the game as described above, except that each player will draw three cards from the top of the deck.
- Each player may use any operation necessary to create the highest number possible with the three cards. The numbers can be in any order. All numbers must be used.
- If my three cards are five, two, and six…..I could create the following sums:
- 5+2+6=13
- 5-2+6=9
- 5×2+6=16
- 5x2x6=60
- 6/2+5=8
- 5 (2+6)= 40
- More complex………6squared + 5squared+ 2 squared=65
- Even more complex……..6cubed+5cubed+2cubed=349
- any operation, any combination!

- The player that creates the highest number wins all six cards.
- Variations: The player that creates the lowest number wins all six cards.

Preschool and Kindergarten

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