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A Dicey Paradox


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How Many Dice?

A standard die has the numbers 1, 2 and 3 are opposite 6, 5 and 4 respectively so that opposite faces add to 7? If you make standard dice by writing 1, 2, 3, 4, 5, 6 on blank cubes you will find there are 2 and only 2 different standard dice. Can you prove this ?

Troublesome Dice

Stage: 3 Challenge Level: Challenge Level:1
It might help to look at a die (or make one) to refer to when you are working out the edge totals.