One possible way: Make a 10 using five 4s as follows: 4 + 4 + (4 + 4)/4 = 10 Make another two 10s using five 4s in each. Multiply these three 10s.
The answer is 4! - [(4+4)/4]
4! - sqrt 4 + 4/4
(4x4)-(4/4) = 15
if you want to make eleven using only four 4s, this is the answer 4/.4+4/4(=10 + 1= 11) TA DA !
It could be: 4+4+4-4/4 = 11
4+4+4x4 by the power of 0.
4/.4 + 4/4 [= 10+1 = 11]
4! - 44/4 = 24 - 11 = 13
4! - sqrt(4)*sqrt(4)/4 = 23
(44 - 4)/4
(4 * 4) - (4/4) equals 15.