Introduction: Mind Reading Trick With Numbers

Picture of Mind Reading Trick With Numbers

This trick uses simple math to read your mark's mind. This is a great trick for kids, since doing it a few times for an adult would likely give it away.

You will need:
- A brain
- the ability to do simple addition and subtraction

Step 1: Step 1

Picture of Step 1

You will ask your target to think of a number. It can be any number , but forewarn them that picking complicated numbers(decimals, fractions) will yield complicated math problems.

Step 2: Step 2

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In Step 2 you ask your target to multiply the number they picked by 2.

Step 3: Step 3

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In Step 3 you will ask your target to add 10 to their current total.

Step 4: Step 4

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In Step 4 you will ask them to divide their current total by 2. If they've got themselves into a mess at this point, just start over.

Step 5: Step 5

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We're almost there. In Step 5 ask them to subtract the original number they picked from their current total.

Step 6: Step 6 Finally!

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In the final step you politely tell them the number they have in their mind right now is 5.

Step 7: The Trick

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This trick is extremely simple in that you have total control on the outcome.

The secret lies in Step 3 where you ask them to add a number.

You can pick any number divisible by 2 to be added. The final answer will always be the number you asked them to add in Step 3 divided by 2. In this case I asked you to add 10 to your total, hence your final answer was 5.

Good luck and have fun with this.


admin (author)2008-06-30

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James Mathew C (author)2016-08-12

hey guys, I choose 6, nvr got it right with 5.pls

ShreyasAS (author)James Mathew C2017-02-25




11-6=5 !!!

ROBONERD123 (author)2017-02-20

it is just half of the number in step 3

Meme queen (author)2017-02-05

It's five bOi @baileyS19

BaileyS19 (author)2016-06-08

haha you got it wrong if the subject choses 12 than the final answer is 6 booom

Meme queen (author)BaileyS192017-02-05

Kid you got it wrong

RebeccaS159 (author)BaileyS192016-09-13

It's 5

DrewB1224 (author)BaileyS192016-07-03


anajjahwaah (author)2016-11-16


noraduncandonuts (author)2016-08-17

Hey guys! So I've known this trick for a while, and I've always known that the answer is always half the number you added, but why is this?

MilanM41 (author)2016-08-08

Are there any other tricks

BaileyS19 (author)2016-06-08

dont worry my calculations were wrong

WeatherV (author)2016-05-21


ÅwáàñS (author)2015-05-26

SamanthaG1 (author)2015-04-08

Holy Crap! I tired this 3 times and it all equals 5 o.o I know the trick though :P Finally

Je M'appelleJ (author)2015-01-14

didnt work for me and i chose 9

i don't think u know how to do maths


9+9=18+10=28(divided by)2=14-9=5!!!!!!!!!!!!!!!!!!!!!!

NoelS1 (author)Je M'appelleJ2015-02-13

Did you follow the steps? Cause it worked for me c:

natasha.kershaw.94 (author)2015-03-01

I randomly chose 10....

SimonaR (author)2015-01-29

Hello, I like this kind of tricks also found it here :)

siddhartha.siddu.39 (author)2015-01-15

noob question;;;;

let I chose a number as x;

2(x) == multiply my 2

2x+10 == add 10

(2x+10)/5 = x+5 == divide by 5

x+5-x == subtract a number I chose at first i.e x

5 == remaining is 5 ; f@ck1ng question

jordanj1 (author)2015-01-15


what this actually means is (FIRST NUMBER)-(TOTAL).

what your supposed to do is (TOTAL)-(FIRST NUMBER).

Booboo0012 (author)2014-12-24

It didnt work i picked 9

you didn't do it correct. It worked for me

issa.sobh.7 (author)2014-11-19

I did I to every body it workd thanks a lot thang I lovvvvvvveee you for the trick now I must be going I will troll more friends love you

welcome (author)2013-02-28

What is the trick?????

chad444 (author)2012-01-01

Oh man, I left my brain at home :(

Dr.Revanth1998 (author)2011-12-21

I already known it !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

salikkuraishy (author)2010-08-08

lol u will need brain hahahaha !!!!!!!!!! nice one

msaleh2 (author)salikkuraishy2011-10-08

you are right bro

msaleh2 (author)2011-10-08

ha ha ha i already knew this trick give me something different

Bert99 (author)2009-02-26

This is a fun trick with a fun purpose

mrpesas (author)2009-02-19

I do this trick with my 8th graders. It works a little better if you say to add 14, so that the final answer is 7. They don't seem to make the connection, whereas they do make the connection with 10 and 5. They won't know exactly how you did it but they seem to figure it out with 10 and 5.

mrpesas (author)2009-02-19

Technically it should be "Subtract the First number from your Total" If you Subtract the Total from the First number you will get a -5 (negative five).

l4nd0fc0nfu510n (author)2008-08-13

Nice instructable, it worked perfectly when I tried it!

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