Mathematics Wordle Fastest Method to Multiply any number with 11.

Fastest Method to Multiply any number with 11.

Let’s recall how we used to multiply by 11 in our younger days.

5 4 x 1 1

5  4

5  4  x

5   9   4

However, there’s an easier way to do this. Check this

5  4  x  1  1

5   (5+4)   4

5    9    4

[note style=”” bg=”” border=”” bordercolor=”{{bordercolor}}” color=””] Whenever you multiply an x-digit number by 11, you will always get x+1 digit answer. [/note]

What happened there?

  • First digit of 54 became the first digit of answer 594
  • Last digit of 54 became the last digit of answer 594
  • Middle digit is the sum of surrounding digits 5+4

Lets try our hands on more complex problem.

6 7 x 1 1

6  (6+7)  7

6  13  7?

Remember, the note above, it can be only three digit long. So what happened here? Yes, you got it right, you need to carry “1” of “13” over 6 like this:

6  7  x  1 1

6    13    7

(6+1)   3   7


7     3    7

 You can apply this trick to more than two digit number. Check out this.

3 2 2 4 x 1 1

3  (3+2)  (2+2)  (2+4)  4


3   5   4   6   4

I hope you got the point. If not, feel free to comment below. Till we show you another trick, keep practicing. Happy calculating :).

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