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Showdown
Number of players needed: 3 or more
Materials: Number cards
Directions: Player one and two stand back to back to each other. Player 3 places a number card on player one's and player two's heads. Player 1 and 2 do not know the number that is on their head. On the count of three, the two players turn around and face each other. Player three tells them the product or sum of the numbers on their foreheads. Player 1 and Player 2 then solve what number is shown on their card.
Repeat.
Multiplication War
Number of players needed: 2 or more
Materials: Deck of Cards
Directions: The dealer deals an equal amount of cards to each player. On the count of three each player flips 2 cards over. The players then multiply the numbers on their cards. The player with the highest product wins. The player with the most cards at the end of the game wins!
4 Strikes You're Out! (Adapted from Marilyn Burns)
Number of players: 2
Directions: One player is the "teacher" who writes a 2-digit plus -2 digit problem on a scrap piece of paper. The "teacher must also write the sum before beginning the game. For example, on your scrap piece of paper the "teacher" might write "34 + 19 = 53" The "teacher then writes a "hangman" style problem for player 2. _ _ + _ _ = _ _. Then the "teacher" lists out 10 digitis below the problem: 0 1 2 3 4 5 6 7 8 9.
Now the game begins. Player 2 guesses a number. The "teacher" checks their problem. If the digit appears in the problem, the teacher writes it in the blanks where it appears before crossing it off the digit list. If the digit appears more than once, the "teacher" write it in every correct blank.
For example, in our sample problem, if the player guessed 3, the teacher would complete the hangman board in this way:
3 __ + __ __ = __ 3
1 2 X 4 5 6 7 8 9 0
If the player chose a digit that does not appear in the number sentence, then the teacher crosses out the digit and records "Strike 1."
If the player solves the number sentence before getting 4 strikes, then he wins. If he gets 4 strikes, then the "teacher" wins.