19
$\begingroup$

Here's a little brain teaser, for your coffee break:

$$ 62-63 = 1 $$

Move only one digit to make it right!

Have fun!

3 Answers 3

41

$6263 \neq 1$.

I moved one character not a digit :)

43

(By request...)

If we can move one "character", then moving the horizontal line over gives $62 = 63 - 1$

42

I believe that following expression is unique solution to the riddle :

$2^6-63=1$