Cool Math Trick..............

[mc1962]

Try this with your kids..............

THINK OF ANY NUMBER

DOUBLE IT

ADD TEN

DIVIDE BY 2 (CUT IN HALF)

SUBTRACT THE FIRST NUMBER YOU STARTED WITH

YOUR ANSWER IS 5
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**WORKS WITH ANY NUMBER**
 

[theorangenight]

any number?? well lets see...

5982
double: 11964
add ten: 11974
divide by 2: 5987
subtract: 5987-5982=

*drumroll*

5

hey DUH i get how it works! haha i feel stupid

[x0kerbear]

used to think that was so cool when i was a kid!

[davidf938]

I saw how it works after I went back and studied it. You do 2 math operations at first and then 2 to reverse them. This is a good trick to do without pencil and paper. Writing it down makes it too easy to figure out.

[abbyc27]

Hahaha yess I remember this from when I was a kid.. I think it was on Zoom or something.  Yeah it is easier to see how it works now that I'm older.  I love tricks like this!

[janey851]

Thank you for that.  Needed to feel duh.

[mgarmstrong]

Here is another.

1.      Pick your favorite number between 1 - 9
2.      Multiply your favorite number by 3
3.      Then add 3
4.      Then multiply by 3
          (I will wait while you get the calculator)
5.      You should have a 2 digit number
6.      Add the digits together
7.      Your answer is '9'.....Try it.

[michealmmsm]

Totally cool.  Used it on guys at work (engineers) and man did they fall for it