Multiplication Math Hack (For Multiplying Two 2 Digit Numbers FAST)

This video will teach you how to multiply two 2 digit numbers using lines instead of long multiplication. In the first example you need to work out 14 x 31. For 14 you will need to put 1 diagonal line at the bottom of the page and 4 diagonal lines above these. For 31, you will need 3 diagonal lines going the other way and 1 diagonal line directly below. You will then need to count the intersection points to get your final answer.