This picture and story will help you remember 4 x 8 = 324 (Door) x 8 (Skate) = 32 (Dirty U)To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoFact Navigator You're learning4x8328x432 Move on to other facts: Back Next 4 X 7 28 4 X 9 36 View All Facts