martes, 18 de septiembre de 2012

[1 ESO] Guessing your birthday

I guessed some of your birthdays today... How did I do do it? Here you have the table with the dates... can you find out the "trick"?

Remember: you told me in wich tables your birhday can be found and I guessed it instantly (so no time to check them out...).

Go to comments and tell me if you know the maths underneath.

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