### Brain Teasers

# Addition

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

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?

RULES-

* 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.

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?

RULES-

* 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.

### Hint

Why 8?### Answer

Rotate the 8 ninety degrees to make an infinity sign.Hide Hint Show Hint Hide Answer Show Answer

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## Comments

this should be in the trick not in the math. good one though!

Short and sweet. I got it ! Nice quiz !

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........]Â° * 8=8

[1+2+4+8+16+32+64........]Â° * 8=8

I love this one.

It's call a lemniscate.

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

"To infinity and beyond!"

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