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Math Arguments

Math Arguments

Problems, Questions, and Puzzles to spark discussion and argument in the maths classroom.

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Item 296

Combination (?) Locks 1

Which one is most secure?

Three numbers ...




This one with three extra wheels you can swap in ...



Or this one, with three letters?



.
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Comparisons
T.R.Milne
PROBABILTY

Source: T.R.Milne
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