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.)
If we can use a decimal point, then nn/.nn = 100 which requires only 4 of each digit. This works for n = 1...9. A couple of those could be slightly improved as well:
(.1)^(11) = 100
(2/.2)^2 = 100

Posted by tomarken
on 20140519 11:17:04 