Learn a Fact: 4 x 7 This picture and story will help you remember 4 x 7 = 284 (Door) x 7 (Surfin) = 28 (Denty Plate)To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoFact Navigator You're learning7x4284x728 Move on to other facts: Back Next 7 X 3 21 7 X 5 35 View All Facts