Hello, sorry for not posting lately. I made a magic trick!
(You’ll need a 9-digit calculator, non-scientific, so not on a phone or computer; basically, a physical calculator which shows 9 digits onscreen. No more, no less)
Just trust me.
Okay, here we go.
Choose one of these numbers.
Now, take that number and...
- Add 5 to it
- Multiply your answer by 4
- Take 3 away from your answer
- Multiply your answer by 2
- Add 2 to your answer
- Add your original chosen number to your answer
- Take away 36 from your answer
- Add the digits of your answer. If your answer is a one-digit number, just use that number
- Multiply your answer by four
- Take away 5 from your answer
This is your magic number.
Now grab a nine-digit calculator (non-scientific, as mentioned at the start) and...
- Type any random assortment of nine digits in
- Press the square root button your magic number times
- Take the digit now shown on the calculator and multiply it by 3
What number did you get? Did your family, friends, and other forum members get the same?
Please, please, please only read this if you've already done the trick
Seriously, only if you have completed the magic trick!
I'm giving you a third chance here
I really hope you've done the trick already
If you haven't done it yet, do it! It will take five minutes
Last chance
So, I’m assuming you’ve already done the trick (hopefully 
). If so, was your answer the number 3?
If not, I might have made a mistake somewhere. I wrote the whole trick myself. So please tell me if you spot anything that isn’t right.
Of course, it’s very easy for you to make a mistake as well, so if you didn’t end up at the number 3, then do it again, being extra careful this time.
Thanks for taking the time to test my trick! 
If anyone would like to know how this works or how to write your own, the maths¹ is quite simple² assuming you have completed year 7 algebra (I’m in year 8).
So reply if you want me to tell you.
¹ When I say it is quite simple, I do realise i am quite good at maths. However, this being a coding forum, I would guess that most everyone else here is too.
² Also, just another note, I don’t know why the calculator part works. I was just playing around on a calculator one day and discovered that property. Also, the reason why I don’t want scientific calculators to be used is because they show more decimal places. So the final number that you come up with, on a scientific or phone calculator, would have .0000000023508 or something like that on the end of it. Which I’m sure you agree, really doesn’t matter and would ruin the fun of the trick for no reason.
