Multiply two digit number by 11
53*11=583
Step 1: Add the both digts of the two digit number:5+3=8
Step 2: Place the result in between both digits : 583
59*11=649
Step 1: 5+9=14
Step 2 : Carry the 1 when the result is greater than 9:5+1=6
Step 3: 649
