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# I can read your mind…

By inquisitive | Published | No Comments

Playing with numbers and their divisibility properties can create some fun party tricks! Let’s see if I can read your mind…

- Choose a number between 1 and 9 (including 1 and 9).
- Multiply the number by 10.
- Take away the number that you first thought of.
- Add the digits of the number you now have (e.g. 23 would give you 2+3 = 5, a single digit would remain the same).
- Subtract 5.
- Now convert your answer to a letter of the alphabet using the code 1 gives a, 2 gives b, 3 gives c etc. etc.
- Now think of a country beginning with the letter you have.
- Take the second letter of that country, and think of an animal beginning with it.
- Finally note its colour.

You should now have a coloured animal from a country e.g. a brown rabbit from Argentina.

And now….for the great reveal….

Did you pick?

Keep scrolling

And more…

I’ll write it small so there’s no cheating!

Did you choose a grey elephant from Denmark?!

Of course, you may well have chosen a yellow jaguar from Djibouti, but I’m guessing most people didn’t. So how did I do it? Well, if you multiply a number by 10 and then subtract the original number, you’re really multiplying the number by 9. And the sum of the digits of any 1-digit number multiplied by 9 is…9. Take away 5 and you get 4, which converts to ‘D’. Most people then think of ‘Denmark’ giving you an animal beginning with ‘e’. And that’s how I did it. But it’s much more fun when you don’t know how!

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