Numbers speak more than words

Hello LLs,
We all are the kind of people, who find a rare kind of interest towards Numbers. We feel like these digits are trying to talk to us. These numbers are trying to speak their sides of stories. That is the power of logic. We try to see what is beyond the mere visibility. For the sake of this interest towards numbers, I am today going to present you a puzzle which has only numbers in it. These numbers are trying to speak their side of story. Just try to listen to their words. I am sure, you will find what you are looking for.
Tip: Don't over-think yourself. The answer is lying in front of you. I can see it right there, staring at you, screaming the logic behind their positions. Try to reach to the answer now.

Puzzle: Use any mathematical sign in between these numbers - to prove these operations mathematically correct.

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

If you are finding numbers much more interesting and want to try some more puzzles of this kind. Find them here:

Apples Car-Number Bodmas with his students