How can I make a rule to mark all messages sent to Mail Trash as Read?

How can I make a rule to mark all messages sent to Mail Trash as Read?

When I look at some emails on my phone, I can see from the title that I don't need to read the email so I delete it without opening it. When I go to my Macbook Pro and open mail, the number of unread messages in my Trash shows next to the name. It drives me nuts. Can I just set a rule to mark all messages sent to trash as read? If that isn't possible, I'd take just making the number not show beside the Trash folder.