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Trick brain teasers appear difficult at first, but they have a trick that makes them really easy.


Puzzle ID:#49329
Fun:*** (2.58)
Difficulty:** (1.74)
Submitted By:incredibotsmasttsg****
Corrected By:4demo




1+2+4+8+16+32+64+... = 8

If the '+...' means that it goes on and on forever, how can you do only one thing to this to make the above equation equal?


* You may only take away or add a symbol/ digit,

* OR, move a digit around,

* OR, put a digit on top or below to make a fraction, resize it to make it a power, etc

* OR change a digit into another one.

** You CANNOT change the = or ... ... signs.

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Mar 27, 2012

this should be in the trick not in the math. good one though!
Sep 10, 2012

Short and sweet. I got it ! Nice quiz !
May 08, 2014

But you can also make d left side of d expression raised to Zero and den multiply by 8
[1+2+4+8+16+32+64........]° * 8=8
Aug 10, 2014

I love this one.
Dec 21, 2014

It's call a lemniscate.
Mar 02, 2015

Loved it! Made me think of Buzz Lightyear from Toy Story.

"To infinity and beyond!"

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