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Double or Halve?

Stage: 1 Challenge Level: Challenge Level:1
This is a game for two players.

You will need a dice or you could use our interactive dice.

How to play:
  • Decide on a target number.  This is the total that both players are trying to make.
  • Player 1 throws the dice.  S/he can choose whether to double the number shown or halve the number shown.
  • Player 2 throws the dice.  In the same way, s/he can choose whether to double the number shown or halve the number shown.  Player 2 adds his/her number onto Player 1's number to make a running total.
  • Play continues like this with each player rolling the dice, halving or doubling the number and adding the result onto the running total.
  • The winner is the player who reaches the agreed target exactly.
Here are some questions to think about:

Must each player always take a turn?
Does it matter if you go first or second?
Are there any particularly good numbers to choose as your target?