BEAT THE CALCULATOR

Addition Facts:

Materials:
  • 1 deck of number card 1-10 (4 of each for a total of 40 cards)
  • calculator
Number of Players:

Three (3)
Directions:

One player is the "caller," a second player is the "calculator," and the third players is the "brain."

Shuffle the deck of cards and place it facedown on the playing surface.  The "caller" turns over the top two cards from the deck.  These are the numbers to be added.  The "calculator" finds the sum with a calculator, while the "brain" solves it without a calculator.  The "caller" decides who got the answer first.

Players trade roles every 10 turns or so.

Multiplication Facts:

Players multiply the numbers on the two cards.

Extended Multiplication Facts:

The "caller" attaches a 0 to either one of the factors or both factors.

For example, if the "caller" turns over a 4 and a 6, he or she may make up one of the following problems:

                4*60        40*6        40*60