by Ian

THE EFFECT: Think of a number, double it, add 8, divide it by 2, now subtract it by the first number you started with. Your answer is 4.

THE SECRET: The answer is always half of what you add. You can add 2, 4, 6, 8, etc. But it will always be half of what you add! HAVE FUN :-)

Average Rating

 Sep 17, 2014 Rating OMG by: Sunny l Omg that is so awesome my friends always did it to me and I had in idea how to do it so THANK YOU!

 Apr 10, 2013 Rating not new by: Anonymous everyone knows it

 Aug 15, 2011 Rating cool! by: barneytop very simple! i like it!

 Jul 30, 2011 Rating best mentalisam trick by: Nabob best mentalisim trick ive seen yet.

 Apr 27, 2011 Rating How does the Trick Works by: jsjamir 1. N Double 2. 2N Add 8 3. 2N+8 Divide by Two 4. N+4 Subract the chosen Number 5. 4 You removed the chosen number secretly ;)

 Feb 11, 2011 Rating simple math by: ozpolat (2k+8)/2-k=4 you can use simple math for lots of simle formulation for this kind of trick

 Feb 20, 2010 Rating Re how?? by: Anonymous How?? by: Anonymous I've done the trick a lotta times and even picking numbers from 1-10, I never got half of what I added, so the trick failed. If I chose higher numbers, like 37, for example, doubling it makes it 74+8 makes it 82 / 2 makes it 41. Please help with this trick. ----YOU FORGOT TO SUBTRACT THE NUMBER YOU STARTED WITH!!

 Jan 24, 2010 Rating Cool trick by: JFP nice trick im doing this in math class to sound smart.

 Oct 31, 2009 Rating The best by: Anonymous This is awesome I dont know how anyone would fiqure this out

 Sep 05, 2009 Rating How?? by: Anonymous I've done the trick a lotta times and even picking numbers from 1-10, I never got half of what I added, so the trick failed. If I chose higher numbers, like 37, for example, doubling it makes it 74+8 makes it 82 / 2 makes it 41. Please help with this trick.

 Apr 15, 2009 Rating Commented add-on... by: Anonymous What happens if they pick "Emu" for the commented amendment to the trick?

 Oct 12, 2008 Rating Better way by: Anonymous You can expand on this more, which is what I do. After they come up with four, tell them that A is 1, B is 2, C is 3, D is 4, E is 5, and so on. Tell them to think of a state that starts with that letter(Delaware is the only D state). Tell them to think of the second letter of the state, and think of an animal that starts with that letter. Tell them to keep thinking of the color. Keep thinking, keep thinking. Then say "Oh! There are gray elephants in Delaware"! It has a much greater effect than this.

 Sep 13, 2008 Rating Thanks by: Anonymous Quite Nice