I am new to the game and have come across this problem a couple of times.
Here is the example. My pokémon has a 50, 10 10 on it.
If I have a card that says "remove 2 counters" does that mean remove 20 damage points, or can I remove any two counters?
If I have an attack that says " add 10 damage for each counter on your pokémon, would I add 70 to my attack or 30?