Can this be done on any level, or just 11? I've known games to have 2 or 3 bugged clocks, is it just because of this trick? Tried it quickly yesterday but wasn't able to do it.
I think it works for every level (the level when the alarm is set off).
I am not sure if it is a bug, but TNT seems to approve this as I have been using it for years.
Well, you can't get it every time. It needs perfect timeing (and so I usually get this by a bit luck). Usually I can skip the alarm 1 out of 5 trials. When making the video, I played the game for 4 times.
i do think you need good mental calculation you just cant use the calculator or something even if you are way fast 
To make myself clear of what I say "don't need good mental calculation", I mean you don't need to calculate it very quickly (just like those who get 8760 in world challenge), so long as you get the clock alarm skipped, you make your way to the avatar. (Actually I messed up in level 4, as you may have noticed)
Therefore just do the calculation digit by digit. Do it from right to left.
say for example, 54 x 30, we know the last digit must be 0, so type in 0 first.
Then consider 4 x 3 = 12, we get "2" as the 2nd digit.
Again 5 x 3 = 15, we get 5, plus the previous "1" from 12, so it gives "6" as the 3rd digit
At last, just put the remaining "1" from 15 in front of the number.
(1) 54
x 30
------
???0
(2) 54
x 30
------
??20
(3) 54
x 30
------
?620
(4) 54
x 30
------
1620
Multiplication is the most difficult of all (to me). For addition and subtraction it's quite simple indeed.
For division, if you can't find the answer, just try you luck. Usually the answers will be odd numbers, especially 23, 27, 45, 57, 37 etc.
Edited by Giuseppe di Stefano, 28 December 2009 - 11:16 AM.
