SHORTCUT TO MULTIPLY NUMBER WITH 11

Slide 1 : Multiplying any Number with 11 5 6 7 8 9 Step 1 – Insert zeros at the ends of the Number A zero is added just to remember performing the same operation on each digit 0 0 © LazyMaths.com Example 5 6 7 8 9 x 1 1

Slide 2 : The last digit does not have any neighbor, so nothing is added to it Example 5 6 7 8 9 x 1 1 Multiplying any Number with 11 5 6 7 8 9 Step 2 – To each digit, add the Neighbors (Neighbor is a number on the right) As you add the neighbors, don’t forget to add the carry overs Final Answer 0 5 6 7 8 9 x 11 = 6 2 4 6 7 9 5 6 7 8 9 0 5 6 7 8 0 0 9 + = 9 + = 7 1 + = 5 1 + = 3 1 + = 1 1 + = 5 6 4 2 6 © LazyMaths.com