Math Trick - Multiply Using Lines!
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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Пікірлер: 908
This man just changed my perception towards maths ,I never knew calulationg could be so interesting.Thanks man!
I shocked my teacher when I did this on a test
@lucasplayz2091
3 жыл бұрын
Haha
@eeeeoree4973
2 жыл бұрын
Well ,that’s amazing
@cedricdorian2173
2 жыл бұрын
instablaster...
@arvahello7171
2 жыл бұрын
I'm planning on doing this for my gcse bc i cant do long multiplication
@pigletandeeyore.1199
2 жыл бұрын
Same
Your channel has increased my test scores by so much. Thank you very much 😊
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.
@mmedeuxchevaux
7 жыл бұрын
it's still amazing.
thank you for showing this to me!!!! i wish they had taught us this in school...
@thuglover87
10 жыл бұрын
Same here stupid teaching methods were given to us
@Dr4g0nW00d
10 жыл бұрын
they never learn u something useful in school
@MrMattbarbs
9 жыл бұрын
Grammer might be nice.
@EETechs
9 жыл бұрын
Matt Barbour duuur, thirr nevers learns mes this stuf'SSS. I fur sur dum'.
@rajangamkannan9281
7 жыл бұрын
Xeid
This got patched in the latest update
@aishao5214
4 жыл бұрын
Wut
@Lennyst
4 жыл бұрын
...
@selmanbela6455
4 жыл бұрын
Do you mean this dosent work anymore?
@liamcabildo
4 жыл бұрын
It was a joke relax..
@kubakakauko
4 жыл бұрын
hahahah, this made me lough
I remember being confused at grade four when they taught us this, now looking back to it, it's actually more simple.
That's amazing, Oml thank you maths has never been easier
If I knew this when I was a kid, it would have changed the way I saw maths back then. Lol. Great demonstration! :-)
Thanks for watching. The reason for the same numbers.....luck I guess (Ididn't know this was the case!).
This is awesome! Comes in perfect for my exams. Thanks for sharing xx
This just blew my mind - thank you!
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.
@LuminBySSS
2 жыл бұрын
@@sumatiranjan126 this is op. wtf r u talking about?
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
3 жыл бұрын
?
@eeeeoree4973
2 жыл бұрын
@@itachiuchiha7842 what are you tryna know bro this comment was 7yo ago mybe before your birth 😂😂😂😅
I love it thank you! Finaly i can get my head around times tables
I LOVE this! Thank you for your time!
FUCK WHY DID I NOT DISCOVER THIS BEFORE MY EXAMS
How about seven ,eight or nine in the equation , could be a bit messy , I'd say !
Bro I literally got out of bed and grabbed my graph paper for this one, cheers mate! This is Awesome!!!
Thank you so much tecmath, your videos are GREAT keep posting. THANKS.
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.
@Olnx
2 жыл бұрын
agreed
@Alkis05
2 жыл бұрын
High digits alway a problem. Maybe work with complements: 100 x 60 - 97 x 2 - 3 x 60
@Alkis05
2 жыл бұрын
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.
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'm bad in math, but a visual learning and this make since to me. I will now continue practice .
Thank you so much I have struggled for the longest to find a trick that I can understand. Very grateful for this 😬😬
what about if any number has a zero ? for example 101x12 or 304x203
@user-zb8br6nw3e
7 жыл бұрын
do you find out
@tacorevenge87
7 жыл бұрын
Use the vigesimal system mate, that is why the mayas invented it, to deal with the zero, also invented by the mayas.
@mamuhanzo6791
7 жыл бұрын
Arturo Manaia ty bro
@SirKingHoff
7 жыл бұрын
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.
@moeinmk5262
7 жыл бұрын
SirKingHoff
When my teacher put this on my test I got it wrong LOL
im in college and have always struggled with multiplication and this is the greatest thing i have ever learned
This is going to help me so much with my maths. Thanks man this is going to make a huge difference
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 .
I like this method, but lost me if there was 0 included I need to see how this works as well on the board???
@rileyk5228
4 жыл бұрын
Try coloring it a diff color and then not counting those intersections. Or pretend to draw the line and skip to the next spot
@sandrabowen8956
4 жыл бұрын
@@rileyk5228 thats a great idea lol
@nickname3114
4 жыл бұрын
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 🥄
@nickname3114
4 жыл бұрын
doing higher number is a pain try 6789 19x9, 99x99 is there a trick around this problem to many lines
@x7teee
3 жыл бұрын
Dean Edwards 99 X 100 - 99 lmao
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
You explained it very well, thank you
But what about zeros? 100x100? 107x705?
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.
@lynagranger7486
4 жыл бұрын
133×177
@maskerdasher343
4 жыл бұрын
I was thinking 12x12=144+12=156
@XiaoPangZi
4 жыл бұрын
@@lynagranger7486 Please try that with lines, we would be done way before with any other method anyway xD
@theodoreroosevelt1858
4 жыл бұрын
yeah but thoughs are just examples bro soooooo whats 69*420 than in your head
@XiaoPangZi
4 жыл бұрын
@@theodoreroosevelt1858 It's 28'980, why? (yes i did that in my head, there are tricks for this too..) BROOOO...
Thanks i got it, Flawlessly thanks for your exceptional explanation
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!
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
@HUGO-sr4rc
4 жыл бұрын
Voila*
interesting method, but I had them all figured in my head before the drawing was finished. still good for kids who struggle in math
I'm 40 and just learning this now.... amazing!!
Awesome video. Excellent presentation!!
185 people work for common core
multiply 998 × 898
@claireryder
8 жыл бұрын
LOL
@IvGBeast
8 жыл бұрын
+Faisal Basha 896,204
@EdJ589
8 жыл бұрын
+Faisal Basha exactly what I thought 1 min into the video. ha, draw those lines.
@Unufalready
8 жыл бұрын
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
You explained it clearly,thank you
Dude you just helped me learn quick math in my head
What is 999x999? Edit:that’s many lines
@redamber483
5 жыл бұрын
a big oll 998001
@pau.diaz0
5 жыл бұрын
that's hard but you can do it in 30 minutes
@mazxbv
5 жыл бұрын
@@pau.diaz0 this is an easier method, well worth a watch kzread.info/dash/bejne/Y6OCpKeNkcyaosY.html
@seanwrfps
5 жыл бұрын
TeamUSASportsFan Or you could just do 999*1000 = 999000 Take away 999*1 from 999000 = 998001
his voice is klling me(≧▽≦)
Thanks, think that's one of my favourite, maths tricks of all time.
you do a great job.I also like to times two #:s by 11 in my head faster than a calculator.simplistic yet unique
Horry clap that's easy!
@GrahamJones
9 жыл бұрын
That's a neat trick - haven't seen that before
999x999 plz :V
@jhernandez125
6 жыл бұрын
Marisueksu hahaha just said that on my comments lol
@jasonsonnenfeld1985
6 жыл бұрын
Go up 0ne down one to get 998 x 1000= 998000 then add 1squared which is one so the answer 998001
@YuvrajSingh-vm8lt
6 жыл бұрын
pretty late but, pick a dotted line for representing 10, another line for -1, now do it.
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!!!!
Your tricks are super awesome.
and this is why the japanese are good at math ^^
@abs2100
6 жыл бұрын
nigen it’s actually in Indian method
@IGleeker
6 жыл бұрын
It’s not really difficult to do it the conventional way to be honest
@frankh1786
5 жыл бұрын
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
@swagpiggy9296
3 жыл бұрын
@@abs2100 i think its a method that someone invented and everyone says its theirs because its a Chinese method
@abs2100
3 жыл бұрын
@@swagpiggy9296 i commented this 2 years ago lmao but go off
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... :=
this is a massive help for my year 9 exam going into year 10 its really important i nail my times tables thanks
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 .....
@samwiseshanti
8 жыл бұрын
+Maestro 312 Ahahaha!
@jakep9685
6 жыл бұрын
Ur so dirty bro
@syedking5080
6 жыл бұрын
you have sooo dirty mad guy
oh wow, thats a really easy way too waste your time
@pau.diaz0
5 жыл бұрын
hahaahhaahhahahahahahahahaahhaahahhahahahahahahahaha
@mazxbv
5 жыл бұрын
it's a different way of thinking about the problem; it's maths
@Nezethegreat
4 жыл бұрын
That a really easy way to *waste your time*
Really cool Mr. Tecmath, quite an interesting diversion, and refreshing mental exercise.--Thanx
Thanks for showing the maths work
i can do the math faster in my head, lol..
@anjollabanton230
5 жыл бұрын
Althexia bully for you.
@frankh1786
5 жыл бұрын
Althexia well you’re too cool, Want a cookie?
What an amazing method! Thanks for making my life easy
Absolutely fantastic!
Thanks for teaching this new way that I never learned in my school days.
@TheDoggirl3
Ай бұрын
Especially when your partially deaf like me.
Thanks it helped me a lot !
This method i can actually do in my head.
That is a really cool trick great job
Nailed it.!.!.!. I will share this!!
That's nice.....thank you for sharing it. You have a great day.
Omg thanks! I finally understand this
This video is so help full
this is realy good and helpful. pritty easy as well
YOU ARE SO HELPFUL OMG!!!!
Great ...first time seen this kind of calculation 👌
I HAVE MY SAT TOMORROW I NEEDED THIS 👊🏿😂😂
So relieved I always hated the other way they teach in school one thing learned today :)
so cool am gonna master this now
Thx bro this very helpful
OMG!!!! This is phenomenal lol! This makes math that much more fun to do.
This is amazingly awesome... thank you so much!! :D :D :D
Thank you soooo much bro this is the best thing ever
nice 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
Thanks for the video its helped me 😁😀
It works and used common sense to adjust to zeros or numbers greater than 8 - very cool
Brilliant!!! Wish I knew this when I was at school...... :(
This is awesome!
That is freaking awesome! ;)
Good job 👏🏻
really nice thx sir
Just brilliant.
Very nice
No words awesome 👌
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
Thank you!
That is just too cool!!
Wow! That's so interesting!
This man just gave me some Knowledge that I will use to confuse my math teacher
Thanks mate 🙏
OMG Thanks a lot that will be a very good thing for me to do in school