Easy Multiplication Trick - Multiply Up To 20*20 In Your Head!!

Tags:: Multiplication Numbers Mathematics Math Tricks

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By: CJ-Lobros
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Subscribers: 20
Updated: 10-Jan-08
Videos: 11

English
Comments: 2
Views: 21,768
Added: 04-Jan-07

With this video you will learn to multiply numbers up to 20X20 in your head!!!
Multiply up to 2 numbers, from 11 to 19 without a calculator!!

Take the 2 numbers, then:

-Place the larger number at the top.
-Take the first number and the last digit of the second number.
-Add the first number and the last digit of the second number.
-Then Multiply the answer by 10 or just add a cero, and keep the answer in your mind.
-Then Multiply the two latest digits of the two numbers, take the answer and...
-Add the first result with the other and voila!!!!

Practice it first!! then you will be able to do it in your mind in just 5 seconds!!!

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Comments on

Easy Multiplication Trick - Multiply Up To 20*20 In Your Head!!

2 Comments | Add Comment

simple and effective
just using the properties of number values...ok; works only for numbers 11-19 as he said
By mutleyx 1166906918 Reply Spam [+3] Moderate Up Moderate Down Remove ~~3779064~~
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lmao, i love the speaking "check it out"
other wise, pretty H**o video.
By cummaster5000 1167902730 Reply Spam [+2] Moderate Up Moderate Down Remove ~~3903120~~
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