Math Trick - Multiply Using Lines!
ฝัง
- เผยแพร่เมื่อ 27 ม.ค. 2013
- This amazing multiplication trick possible has it's origins in Japan -although I have heard arguements it is a Vedic math trick.
Either way - this trick allows you to multiply two numbers quickly and accurately, using a handy visual method - lines.
This method does not use any multiplication tables, making it accessible to all learners.
Part 2 of this video (how to multiply using lines with fives and zeros) is here:
• Math Trick - multiply ...
Arithmetic made simple!
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This man just changed my perception towards maths ,I never knew calulationg could be so interesting.Thanks man!
Thanks for watching. The reason for the same numbers.....luck I guess (Ididn't know this was the case!).
Your channel has increased my test scores by so much. Thank you very much 😊
I shocked my teacher when I did this on a test
Haha
Well ,that’s amazing
instablaster...
I'm planning on doing this for my gcse bc i cant do long multiplication
Same
thank you for showing this to me!!!! i wish they had taught us this in school...
Same here stupid teaching methods were given to us
they never learn u something useful in school
Grammer might be nice.
Matt Barbour duuur, thirr nevers learns mes this stuf'SSS. I fur sur dum'.
Xeid
I remember being confused at grade four when they taught us this, now looking back to it, it's actually more simple.
This is awesome! Comes in perfect for my exams.
Thanks for sharing xx
If I knew this when I was a kid, it would have changed the way I saw maths back then. Lol. Great demonstration! :-)
That's amazing, Oml thank you maths has never been easier
Correct! It would end up a messy quagmire to work out 8945 x 9854, and for these sorts of cases it is not the quickest method.
I'd use the vedic math techniques to do those types of calculations.
@@sumatiranjan126 this is op. wtf r u talking about?
Thank you so much tecmath, your videos are GREAT keep posting. THANKS.
This just blew my mind - thank you!
This got patched in the latest update
Wut
...
Do you mean this dosent work anymore?
It was a joke relax..
hahahah, this made me lough
OIH :O I've been shitty at math all my life, this is really the best way to calculate. Thanks mate for uploading :D
?
@@itachiuchiha7842 what are you tryna know bro this comment was 7yo ago mybe before your birth 😂😂😂😅
Thank you so much I have struggled for the longest to find a trick that I can understand. Very grateful for this 😬😬
I LOVE this! Thank you for your time!
How about seven ,eight or nine in the equation , could be a bit messy , I'd say !
I just tried it with 427x126 and got the correct answer of 53802. I find the hardest part is lining up the groups correctly, but practice would probably solve that issue.
I love it thank you! Finaly i can get my head around times tables
This is going to help me so much with my maths. Thanks man this is going to make a huge difference
I've seen this method described elsewhere many times - the examples shown always use low value digits, always. It's when you try something like 97 x 58 that you realise how tedious it gets.
agreed
High digits alway a problem. Maybe work with complements:
100 x 60 - 97 x 2 - 3 x 60
Or use a different line (eg. dashed line) to represent a line with value 5 instead of 1. That cuts down the max number of lines per digit from 10 to 5.
FUCK WHY DID I NOT DISCOVER THIS BEFORE MY EXAMS
Really cool Mr. Tecmath, quite an interesting diversion, and refreshing mental exercise.--Thanx
Awesome video. Excellent presentation!!
These get real ridiculous with anything higher. Its meant for smaller multiplication. Doing something like 7895 x 68 can take a whole sheet of paper, and that's a relatively small multiplication problem. The ones demonstrated here are pretty much the ceiling for being a practical method. Even something like 689 x 42 can get pretty out of control on a piece of paper.
it's still amazing.
When my teacher put this on my test I got it wrong LOL
This is a great math trick. I'm going to be writing my ged test in Canada in a couple weeks and this will really help me! Thanks
This is amazing! Thanks so much! It's way better doing this method than having to remember the tables c: Really helped with my maths!
what about if any number has a zero ? for example 101x12 or 304x203
do you find out
Use the vigesimal system mate, that is why the mayas invented it, to deal with the zero, also invented by the mayas.
Arturo Manaia
ty bro
whenever you encounter a 0 just leave a space where the line would be drawn if the unit was say 1 instead of 0, then draw a circle and use that. but instead of adding the intersections like you normally would just make that group (thousands, hundreds etc) 0.
SirKingHoff
i must have missed some of your previous videos because i cant find to have a solution for 10 *10 and for numbers smaller than 10 for multiplication, according to this method. can you please help me out on that . i really enjoyed this method of multiplication and do you the same method for addition too.thanks .
Thanks, think that's one of my favourite, maths tricks of all time.
Thanks i got it, Flawlessly thanks for your exceptional explanation
I worked out the sums in my head before he even finished drawing the lines.
14x12 = (10x12) + (4x12) is much faster to do in your head.
133×177
I was thinking 12x12=144+12=156
@@lynagranger7486 Please try that with lines, we would be done way before with any other method anyway xD
yeah but thoughs are just examples bro soooooo whats 69*420 than in your head
@@theodoreroosevelt1858 It's 28'980, why? (yes i did that in my head, there are tricks for this too..) BROOOO...
interesting method, but I had them all figured in my head before the drawing was finished.
still good for kids who struggle in math
Your tricks are super awesome.
im in college and have always struggled with multiplication and this is the greatest thing i have ever learned
I like this method, but lost me if there was 0 included I need to see how this works as well on the board???
Try coloring it a diff color and then not counting those intersections. Or pretend to draw the line and skip to the next spot
@@rileyk5228 thats a great idea lol
Isnt to hard there is no spoon/zero so don't draw a line and put a 0 where a line isnt try 10x12
One line on the right no lines just a spoon on the left U end up with 012 now you can't have a spoon on the left so swap it to the right that's it 12spoon 😁
The Matrix there is no 🥄
doing higher number is a pain try 6789 19x9, 99x99 is there a trick around this problem to many lines
Dean Edwards 99 X 100 - 99 lmao
185 people work for common core
this is a massive help for my year 9 exam going into year 10 its really important i nail my times tables
thanks
You explained it very well, thank you
13x14=
1x1=1
3+4=7
3x4=12
Carry the 1 from the 12 to make the 7 into a 8
7+1=8
12-10=2
13x14=182
Viola
Voila*
But what about zeros? 100x100? 107x705?
you do a great job.I also like to times two #:s by 11 in my head faster than a calculator.simplistic yet unique
What an amazing method! Thanks for making my life easy
What is 999x999?
Edit:that’s many lines
a big oll 998001
that's hard but you can do it in 30 minutes
@@pau.diaz0 this is an easier method, well worth a watch th-cam.com/video/1oNBETai4rc/w-d-xo.html
TeamUSASportsFan Or you could just do 999*1000 = 999000
Take away 999*1 from 999000
= 998001
multiply 998 × 898
LOL
+Faisal Basha 896,204
+Faisal Basha exactly what I thought 1 min into the video.
ha, draw those lines.
Ok, you are subtracting the 4 then adding 4 to both the middle numbers so that it still works., but the actual way you're describing should be: 900000-2000-1800+4=896204.
I like asking, whats 999^2 = 1000^2-1000-999 = 998001, i actually fiogured this little trick out myself one day thinking about 3^2, 4^2 and 5^2. 3^2+3+2*4+5 = 5^2
I'm bad in math, but a visual learning and this make since to me. I will now continue practice .
You explained it clearly,thank you
Horry clap that's easy!
That's a neat trick - haven't seen that before
his voice is klling me(≧▽≦)
Nailed it.!.!.!. I will share this!!
Bro I literally got out of bed and grabbed my graph paper for this one, cheers mate!
This is Awesome!!!
999x999 plz :V
Marisueksu hahaha just said that on my comments lol
Go up 0ne down one to get 998 x 1000= 998000 then add 1squared which is one so the answer 998001
pretty late but, pick a dotted line for representing 10, another line for -1, now do it.
Lol 212x13... it takes like 2 second to calculate it conventionally with paper or even in your head. Without being prone to miss one intersection and get it all wrong... :=
Hey thanks for the well instructive informative video. I was firs introduced to this method on TH-cam an many of the videos kind of confused me in one way or another. But not your video! It was well executed and I now know this method when combatting multiplication with no fuss thanks to you! *****
I have dyscalculia and this has helped me to understand multiplication, so I thank you very much for his video.
0:51 that looked so fucked up .....
+Maestro 312 Ahahaha!
Ur so dirty bro
you have sooo dirty
mad guy
and this is why the japanese are good at math ^^
nigen it’s actually in Indian method
It’s not really difficult to do it the conventional way to be honest
Gleeker it’s not but this is easier and almost fool proof. Math is not my favorite subject and this would of helped me back when I was a kid
@@abs2100 i think its a method that someone invented and everyone says its theirs because its a Chinese method
@@swagpiggy9296 i commented this 2 years ago lmao but go off
Absolutely fantastic!
Dude you just helped me learn quick math in my head
oh wow, thats a really easy way too waste your time
hahaahhaahhahahahahahahahaahhaahahhahahahahahahahaha
it's a different way of thinking about the problem; it's maths
That a really easy way to *waste your time*
i can do the math faster in my head, lol..
Althexia bully for you.
Althexia well you’re too cool, Want a cookie?
That is a really cool trick great job
Thanks for teaching this new way that I never learned in my school days.
Especially when your partially deaf like me.
Great ...first time seen this kind of calculation 👌
this is realy good and helpful. pritty easy as well
That's nice.....thank you for sharing it.
You have a great day.
Thanks it helped me a lot !
Thanks for showing the maths work
Thanks sooooo much I never could used to do times but thanks to you i now can as I have SATS coming up and I think I'll get a score thanks so much and that's a new sub to you xx
This is amazingly awesome... thank you so much!! :D :D :D
This is awesome!
OMG!!!! This is phenomenal lol! This makes math that much more fun to do.
Omg thanks! I finally understand this
YOU ARE SO HELPFUL OMG!!!!
nice video dude!
I LIKE TO USE LINE BUT I NEVER USE SOME BUT NOW AM LEARNING THANK YOU SO MUCH FOR LETTING ME KNOW TO USE LINE!!!!
Good job 👏🏻
Thank you.... I tried so hard to figure out the other videos, but with your video it clicked instantly....being a 2014 graduate of High School I wish they'd taught this to those in my class who had a hard time with math.....but thank you once again for sharing some of your knowledge
You were thinking about teaching people this method?? Are you dense? No wonder our education system is fucked.
Wow! That's so interesting!
Thx bro this very helpful
This video is so help full
So relieved I always hated the other way they teach in school one thing learned today :)
I prefer doing it at a table. f.e 212*13:
2 1 2
* - - -
1 | 2 1 2
3 | 6 3 6
(Diagonal from the top right corner to the bottom left corner of the result)
answer: (2)_(1+6)_(2+3)_(6) = 2756
This is especially better for large numbers
I'm 40 and just learning this now.... amazing!!
Excellent video! I've watched several videos about this method, but this is the first time I've been able to understand and actually follow the reasoning. Thank you!
That is just too cool!!
That is freaking awesome! ;)
Thank you soooo much bro this is the best thing ever
No words awesome 👌
nice work
Thanks for the video its helped me 😁😀
This method i can actually do in my head.
Theeeeees ones he'a :) King ! Nice video.
so cool am gonna master this now
Bravo.loved it
Brilliant!!! Wish I knew this when I was at school...... :(
This is so cool!!
Omg thank u i have been failling my math classes for the past 3 years 😭😭😭😭 but now i finally understand cuz i found the method that works best for me
Glad to have helped.
Very cool!