01. HOW TO MUTLIPLY 2 digit number by 11?
Example 1. 35 * 11 = 385
Step 1. Add both digits of the two digit number.
3+5 = 8.
Step 2. Place the result in between both the digits.
3_8_5 = 385
Example 2. 78 * 11 = 858
Step 1. Add both digits of the two digit number.
7 + 8 = 15
Step 2. Carry "1" when result is greater than 9, and add it to the preceding digit.
7 + 1 = 8
Step 3. Place the result in between both the digits...
8_5_8 = 858
