Fast Multiplication of any number - using vedic math - By tecmath
Transcript
| 00:0-1 | Welcome to the Tech Math channel . What are we | |
| 00:02 | having a look at in this video is how to | |
| 00:03 | multiply any number at all . Really , really fast | |
| 00:06 | . We're going to go up to three digits , | |
| 00:07 | but this could be expanded our , you know , | |
| 00:09 | to basically any type of number one , even ridiculously | |
| 00:12 | big ones . So I'm going to give you a | |
| 00:15 | question to start off with and I'm going to go | |
| 00:16 | over the pattern , which I've been looking at in | |
| 00:18 | other videos on how to do it . By the | |
| 00:20 | way . If you haven't seen my other videos , | |
| 00:21 | I recommend . It's probably a big hand if you | |
| 00:23 | wish to get onto this one to go through a | |
| 00:25 | couple of those first , but you don't necessarily need | |
| 00:27 | , it depends how quick you are on the uptake | |
| 00:29 | . Anyway . The question I'm going to give you | |
| 00:30 | is this one 102 times 231 and I'll give you | |
| 00:39 | , I reckon about five seconds to do that . | |
| 00:41 | Ready set go . Mhm . Yeah . All right | |
| 00:46 | . Now , have you got the answer of 23,562 | |
| 00:51 | . Really , really well done . If not , | |
| 00:53 | I'll just go through really really quickly how to do | |
| 00:55 | these . So I joined some dots up on the | |
| 00:59 | right of the screen here just to go through and | |
| 01:01 | show you the pattern which I'll be using . Only | |
| 01:03 | use this pattern again and again . For the first | |
| 01:04 | thing I did was to get my answer is I | |
| 01:07 | went two times one so I multiplied these two numbers | |
| 01:09 | here and I got the answer to . Okay . | |
| 01:14 | The very next thing I did is I'll get rid | |
| 01:17 | of that . The next thing I did is I | |
| 01:19 | multiplied one times nothing and three times too . So | |
| 01:22 | I multiplied these two numbers . Okay ? And so | |
| 01:27 | one times nothing is nothing , three times two is | |
| 01:29 | six . So I'll put that answer down . Okay | |
| 01:33 | I'll get rid of that particular one . I'll get | |
| 01:35 | on to the next number . I went one times | |
| 01:38 | 12 times two and three times nothing . So this | |
| 01:42 | one looks like this . Okay , so one times | |
| 01:47 | one is 12 times two is 43 times nothing is | |
| 01:50 | nothing at all these together . I get the answer | |
| 01:53 | . five . Alright . We're halfway through the next | |
| 02:00 | question . I did the next part of my question | |
| 02:03 | . I did . Now I only want to multiply | |
| 02:05 | these two numbers , so Nothing Times 2 , 3 | |
| 02:09 | times one , nothing plus three gives me three . | |
| 02:14 | And then last of all that leaves me with the | |
| 02:17 | very last number and the two numbers which I multiply | |
| 02:20 | these two . Okay , so two times one and | |
| 02:23 | the answer is to there's my answer 23,562 . So | |
| 02:29 | hopefully you see this pattern here . Okay . Where | |
| 02:31 | we start off and we multiply these numbers and we're | |
| 02:33 | working with these numbers and we're working with all three | |
| 02:36 | . Now , we've sort of moved over this side | |
| 02:38 | and then we moved on to these two numbers , | |
| 02:39 | it's sort of like , I guess almost looks like | |
| 02:41 | going up and over a hill or something like this | |
| 02:43 | . Okay , you're shifting across . Hopefully you see | |
| 02:47 | this this pattern . Okay . It's a really , | |
| 02:49 | really handy pattern when you can do it good on | |
| 02:51 | you , you should be able to do lots and | |
| 02:53 | lots of questions because it leads us on to the | |
| 02:54 | next type of questions which I put on now . | |
| 02:57 | Okay , so 306 Times 24 now , what you're | |
| 03:01 | going to notice straight away ? It's really , really | |
| 03:03 | hard to stick to these particular patterns here , because | |
| 03:06 | all of a sudden we're not dealing with three versus | |
| 03:08 | three things . Okay , this is but you can | |
| 03:12 | make it do that and that's very very simple trick | |
| 03:14 | behind doing it . Put Make this number here . | |
| 03:18 | zero , look at that straight away . You can | |
| 03:20 | do the same pattern . So let's do these numbers | |
| 03:23 | 1st 64 24 . So we put the four down | |
| 03:26 | , carry the two For nothing is nothing . 6 | |
| 03:29 | to 12 plus two Is another 4 . 14 carry | |
| 03:34 | the one three times 44 times three is 12 . | |
| 03:38 | 6 times nothing is nothing . Two times nothing is | |
| 03:40 | nothing for 12 plus this one here , 13 carry | |
| 03:45 | the 13 to 6 . Nothing times nothing . Okay | |
| 03:49 | , It's a six plus this one here , Seven | |
| 03:51 | and then three times nothing . There's nothing . I | |
| 03:53 | won't bother put that in there is there answers 7344 | |
| 03:59 | . So that's how you do this little trick . | |
| 04:00 | Pretty cool . Right . You can do this with | |
| 04:03 | any type of numbers . You can do this with | |
| 04:04 | four digit numbers , five digit numbers . The possibilities | |
| 04:08 | are endless . There's just a little and the answer | |
| 04:10 | is a little trick you're using . Okay . Hopefully | |
| 04:13 | you get that . If you have any questions at | |
| 04:15 | all with this , please let us know . Okay | |
| 04:18 | . Thanks for that . See you next time . |
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