16Hit1600
Advanced MathEasyRepeated doubling by folding

Advanced Math practice question

A sheet of paper is folded in half, then in half again, and so on, four times in all. How many layers thick is the folded sheet?

Answer: 16

Each fold doubles the layers: 2, 4, 8, 16.

Common wrong answers

If you answered 4
4 is the number of folds.
If you answered 8
8 is after three folds.
If you answered 12
12 adds 3 layers per fold instead of doubling.

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