2014 math challenge?

Question

I have to use the digits 2, 0,1, and 4 in any order, with the operations plus minus multiply divide sqaure root, ! factoial, !! double factorial, to write expressions for the counting numbers 1 through 100. Grouping any symbols (parentheses) may also be used, and multi-digit numbers such as 20, 210, .02 may be used.

Please help i have everything but i still need

18, 19, 23, 31, 33, 34, 46, 51, 53, 54, 55, 56, 57, 58, 62, 66, 67, 68, 69 71-75, 77-78, 82, 83, 87-95, 97-100

Please help i have everything but i still need
18, 19, 23, 31, 33, 34, 46, 51, 53, 54, 55, 56, 57, 58, 62, 66, 67, 68, 69 71-75, 77-78, 82, 83, 87-95, 97-100

J. J.. · Accepted Answer

18 = 10 + 2*4
19 = 21 + 0 - sqrt(4)
23 = 24 - 1 - 0
34 = 40 - ((2+1)!)
46 = 40 + ((2+1)!)
58 = (4! * 2) + 10
68 = (4! + 10) * 2
72 = 4! * (2+1+0)
78 = 102 - 4!
82 = 41*2 + 0
98 = 102 - 4
100 = ((4 + 1)!) - 20

edit
51 = 102 / sqrt(4)

Mike · Answer

23 is easy: 24-01=

2014 math challenge?

2 Answers