Follow the monkey's instructions and think of a number. Magic Monkey will guess the number. How does he do it?

Game developed by Cambridge English Online Ltd


Do you know any magic tricks? Tell us about them here!

Average: 3.5 (1646 votes)


well done monkey,thanks

Its quite easy.
Just see that your answer is a multiple of 9.
Now check the symbols.
You will see that all the multiples of 9 have the same symbols next to them.
This is how the monkey guesses your numbers.

Impossible.... I have no words


i can guess , the magic is, ''the difference of the no. & the sum of its digits is always a multiple of 9.''

They guess my number incorect

Mine too

You may have calculated the wrong answer.

How does the monkey calculate the correct answer?

How did he guess my number? Amazing.......