Question

You have 4,4,4,4,8 add multiply divide subtract but the answer should be 100

Answer 1

See,
4 × 4! = 4×24 = 96           (!) is a factorial function             .............................  eqn 1
8/(√4) = 4                                     .............................  eqn 2
Adding eqn 1 and eqn 2 
96 + 4 = 100.
I hope my answer satisfies you .