Pokemon Resistance Charts Pokemon TCG - Weakness And Resistance?

Pokemon TCG - Weakness and resistance? - pokemon resistance charts

Thus, in a fit of nostalgia, I took a couple of starter decks of Pokemon Diamond & Pearl Legends Awakened "expansion, just to see what it was, after years of not playing. One thing that struck me that the weakness and strength for each Pokémon will be calculated differently - that is, some are 2x weak to fight, while others only for the lower 10th

I started booster for future expansion, without this method of calculation of weakness. Just type Pokemon is weak against. I've forgotten how to calculate the strengths and weaknesses in the earlier extensions. Is it 10? 20? X2? Any help is greatly appreciated.