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)

2- need 5 digits: ((2+2)*2+2)^2  or ((22-2)/2)^2  ;-

0- keeping in mihd that 0!=1 and denoting 0! by z:

100=(((z+z+z)!-z))*(z+z)))^(z+z)  using 8 zeroes

Edited on May 17, 2014, 1:44 pm

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