Create 10 mathematical expressions equal to 100. Each should use as few instances as possible of a single digit (0 through 9.)

You may use any common operation (+, -, *, /, ^, √, !, [], parentheses, concatenation.)

(In reply to beginning- the rest later by Ady TZIDON)

So far 6,7,8 stay with the generic solution, using 6 digits to get 100:

100=(kkk-kk)/k.....  k=6, 7,  8.

Will try to improve it.

Maybe,

Edited on May 17, 2014, 1:47 pm

Posted by Ady TZIDON on 2014-05-17 13:34:11