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Subtracting dice Bingo
The game rules
·
The values called in this game of bingo will be determined by subtracting the numbers
showing on a pair of normal 6sided dice. The subtraction will always be the bigger value
subtract the smaller value. There will be no negative values.
·
Players choose 9 numbers. They can be all the same, mostly the same or mostly different.
However, if a player chooses to have all nine numbers the same, that number must be
called 9 times for the player to win. Players can only cross out one of their numbers each
time a number is called.
·
The first player to have all their numbers crossed out is the winner.
Your challenge
is to determine the best set of 9 numbers to use in this game.
What you have to do
Enter the formula “the absolute value of [RanInt#(1,6)
-
RanInt#(1,6)]” into your calculator by
pressing the following sequence of buttons:
eQ.1
SHIFT
)6)‐Q.1
SHIFT
)6)p
Each time you press
p
another simulation value will be displayed.
Simulate the roll of the dice at least 50 times and record your results in the table.
Number rolled
Tally
Frequency
0
1
2
3
4
5
What set of 9 numbers do you think are the best set for winning this game?
Write a paragraph to explain the reason for your choice.
In your group, play the game with a real pair of dice. Which group member’s set of numbers wins
the most frequently?
© Sue Thomson and Shriro Australia PTY Limited. This page may be photocopied for classroom use.