Math puzzler - hooked on six

OK, here’s a small puzzler you can amuse yourselves with. The object is to insert math operators into the following formulas to make the result of the equation 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

The one with twos is easy. That’s
2 + 2 + 2 = 6

Some of the others are pretty tricky. Especially the ones and the eights.