Here’s a brain teaser !.

Can you “build” all the whole numbers between 1 and 100 using only
four 4’s ?

4

and symbol ..

+ - x / ( ) . x^2 = 

oh.. and also factorial..

!

20090707141153

i can get the number 9 as 4+4 + 4/4 ,

hehe.

post your calculated in comment.. let’s see if can get up to 100.

Source : Great-International-Math-Keys-Book

p/s : it is from 1970’s ~

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