Imagine you pick a number between 1 and 10. Then, without telling anyone what it is, they guess it, like magic! But it's not really magic; it’s a clever math trick that works because of patterns we all follow. It starts with a simple rule: multiply your number by 2, add 6, divide by 2, and subtract your original number. No matter which number you chose, the result will always be 3, and they use that to guess your number.
Examples
- You pick a number between 1 and 10, say 7, then follow the steps: multiply by 2 (14), add 6 (20), divide by 2 (10), subtract your number (3).
- Your friend says, 'I guessed it was 3!', but it’s actually because of a hidden math pattern.
- You pick a different number, say 5, and the result is still 3, every time, it works!
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See also
- How Does Magic numbers: 1089 and 6174 Work?
- Why Do Infinity and Zero Play Such Strange Tricks?
- What is 12 34 56 78 9?
- Why Does Math Feel Like Magic?
- What are divisibility rules?