Integer Flash

3.8 based on 31 ratings

What You Need:

  • Deck of cards with the face cards (jacks, queens, and kings) removed
  • Two players

What You Do:

  1. Shuffle and deal the deck of cards face-down equally to both players. Explain that for the purposes of the game aces = 1.
  2. Tell them that each red card symbolizes a negative integer, and each black card symbolizes a positive integer.
  3. For round 1, ask both players to turn over a card at the same time and show it face up on the table. Whoever announces the the correct product, (answer), aloud first, wins both cards. If there’s a tie, both players can keep their cards.
  4. Players continue until one of them has all of the cards.
  5. Whoever has the most cards at the end of the game wins!

Helpful Hint:

Here's a cheat sheet to remind players how integers work:

3 x 3 = 9

-3 x -3 = 9

3 x -3 = -9

-3 x 3 = -9

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