Hello Hivenas, hopefully you will be enjoying your life with good health and spirits. My friends @kamchore here with an other mathematics tricks.

My friends, let me tell you before applying this trick you should know the trick of multiplication of any number by 11. which i told you in my previous post. There is no need to re invent wheel. so, If you missed the post you may click here

Now In today's post I would give you the idea of quick division by 91 to any number with out the use of calculator. Amazed. No worry It is easy. Let's assume we have to divide 21 with 91.

Rule#1

Multiply 21 by 11

21 x 11 = 231 (From previous trick)

Subtract 1 from 231

231-1 = 230

Now Divide the answer by thousand 230/1000 = 0.23. Now pickup the calculator and check your answer.

Let's try another number 97

97 x 11 = 1067

1067-1 =1066

Divide by thousand

1.066

Let's select the number 91

91 x 11 = 1001

1001-1 = 1000

Divide 1,000 by 1,000 gives 1.00

Now Hopefully you will understand why we subtract 1 after multiplication with 11. The reason is simple. Don't hesitate to ask me if you don't understand. Wish you a very happy and blessed life ahead.