Mind Reader: Three in a Row!

I can predict your answer… 🧠✨

1. Think of any three consecutive whole numbers (like 12, 13, 14).
2. Find their sum.
3. Now divide that sum by the middle number.

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Try it yourself

Why does the trick work?

Call the middle number m. Then your three consecutive numbers are m−1, m, m+1.

Their sum is (m−1) + m + (m+1) = 3m. Now divide by the middle number m:

3m ÷ m = 3.

This only fails if m = 0, because dividing by zero is undefined.