Hi @José Augusto Cavalcanti if you are using checklists inside of cards you can mark them as completed and they are then striked through. If you aren't using a checklist you can create one just to say "card is done" and check it off. Then you will see on outside of card a check mark. Let me know if this helps.
Hello Community! My name is Brittany Joiner and I am a Trello enthusiast and Atlassian Community Leader. I'll be sharing with you a series of videos with my top tips on how to best use Trello...
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