Just came across this little youTube clip .
Basically you should use only mathematical operators / functions to fulfill all equations below:

0 0 0 = 6
1 1 1 = 6
2 2 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

There are multiple ways to do this. Here is an example for an easy one … the 4:

( 4 – √4 ) + 4 = 6

So, please give it your best shots and if you want to focus on the toughies … just do 0, 1 and 8.
Full solution will be shown on this blog on the 19th September 2018.