What numbers do i use for the steps?

You pick any number to begin then just follow the tiles.  Use a different number for each trial...

Trial 1
Pick a number... 2
Add 3...  2+3=5
Multiply by 3... 5*3 = 15
Subtract 3... 15-3 = 12
Divide by 3... 12/3 = 4
Subtract the original number... 4-2 = 2

Continue with trial 2... Use 3 this time, then use 4

If you do it right you should start and end with the same number.

Can you tell us the question

The year before the 10s so it was like when caveman were alive