Monday, January 13, 2014

how to multiply any two-digit number by 11 in 2 seconds



Rapidly Multiply any number with 11

Can you do 534 x 11 in your mind? Learn to rapidly multiply any number by 11 and save your time in calculations . This trick will fasten your calculation and help you to save time during exams

Mastering this will also help you in Logical reasoning questions involving calculations and even save some precious time while solving Data interpretation questions.


So master this trick and have a happy calculations 




Example for multiplying any number by 11

Multiplying 3516 with 11

Steps :

1. Pick any number to multyply by 11.
ex. Im going to pick 3,516.

2. Take your number that you have picked and write down the last number(the ones digit).
ex. in our example its 6.

3. Then starting from the last two digits(ones and tens) add them together and write that number next to your last number.
ex. 1+6=7. Then 7 is placed next to my 6 therefore 76.

4. You would continue this process from right to left until you have no more digits to add.
ex. 5+1=6. Then 6 is placed next to 76 therefore 676.
ex. 3+5=8. Then 8 is placed next to 676 therefore 8676

5. The final step in the process is to place the foreleading digit in front of the number youve created through all of the addition.
ex. 3 is placed next to 8676 which gives you 38,676.

So there you have it. You can check that on the calculator if you would like and this will work for all numbers multiplied by 11. Good luck and happy arithmetic!

Productiviti

Author & Editor

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1 comments:

  1. 393 X 11 == 0| 393 | 0 --> 3+0+1= 4(one from carry) --> 3+9=12 +1=3 (1 from carry )---> (9+3= 12 keep 2 and carry 1 ) (3+0 =3)

    This means result is 4323

    ReplyDelete