A. 1. Access the card set options: Go to the card set you want to delete, look for an options menu (three dots or similar), and select 'Delete'. 2. Use the web version: If the app is cumbersome, try deleting card sets from the web version, which may have a more straightforward interface.

B. 3. Clear app data: If you are unable to delete card sets, clearing the app data (Settings > Apps > Cram.com Flashcards > Storage > Clear Data) may reset your decks, but this will also remove all saved data.