How do you remove pencil traced pattern marks from cardboard I was tracing something not knowing that the tracing marks would come to the card board.Though there is no way to remove them.help anyone?

To remove pencil marks from cardboard, you can try gently erasing them with a soft eraser, being careful not to damage the surface. If that doesn't work, lightly rubbing the marks with a cotton swab dipped in a small amount of rubbing alcohol may help lift the graphite. Alternatively, you can cover the marks with a layer of white paint or correction fluid if erasing isn't effective. Always test any method on a small, inconspicuous area first.