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

  • @healthandyou4963
    @healthandyou49632 жыл бұрын

    This man just changed my perception towards maths ,I never knew calulationg could be so interesting.Thanks man!

  • @neozinicola7391
    @neozinicola73913 жыл бұрын

    I shocked my teacher when I did this on a test

  • @lucasplayz2091

    @lucasplayz2091

    3 жыл бұрын

    Haha

  • @eeeeoree4973

    @eeeeoree4973

    2 жыл бұрын

    Well ,that’s amazing

  • @cedricdorian2173

    @cedricdorian2173

    2 жыл бұрын

    instablaster...

  • @arvahello7171

    @arvahello7171

    2 жыл бұрын

    I'm planning on doing this for my gcse bc i cant do long multiplication

  • @pigletandeeyore.1199

    @pigletandeeyore.1199

    2 жыл бұрын

    Same

  • @olufred9424
    @olufred94242 жыл бұрын

    Your channel has increased my test scores by so much. Thank you very much 😊

  • @mquirk00
    @mquirk0010 жыл бұрын

    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

    @mmedeuxchevaux

    7 жыл бұрын

    it's still amazing.

  • @Xeidasx
    @Xeidasx10 жыл бұрын

    thank you for showing this to me!!!! i wish they had taught us this in school...

  • @thuglover87

    @thuglover87

    10 жыл бұрын

    Same here stupid teaching methods were given to us

  • @Dr4g0nW00d

    @Dr4g0nW00d

    10 жыл бұрын

    they never learn u something useful in school

  • @MrMattbarbs

    @MrMattbarbs

    9 жыл бұрын

    Grammer might be nice.

  • @EETechs

    @EETechs

    9 жыл бұрын

    Matt Barbour duuur, thirr nevers learns mes this stuf'SSS. I fur sur dum'.

  • @rajangamkannan9281

    @rajangamkannan9281

    7 жыл бұрын

    Xeid

  • @christiankong5874
    @christiankong58745 жыл бұрын

    This got patched in the latest update

  • @aishao5214

    @aishao5214

    4 жыл бұрын

    Wut

  • @Lennyst

    @Lennyst

    4 жыл бұрын

    ...

  • @selmanbela6455

    @selmanbela6455

    4 жыл бұрын

    Do you mean this dosent work anymore?

  • @liamcabildo

    @liamcabildo

    4 жыл бұрын

    It was a joke relax..

  • @kubakakauko

    @kubakakauko

    4 жыл бұрын

    hahahah, this made me lough

  • @nunu-zo6vz
    @nunu-zo6vz6 жыл бұрын

    I remember being confused at grade four when they taught us this, now looking back to it, it's actually more simple.

  • @CaddraLophat
    @CaddraLophat9 жыл бұрын

    That's amazing, Oml thank you maths has never been easier

  • @chtitmog
    @chtitmog10 жыл бұрын

    If I knew this when I was a kid, it would have changed the way I saw maths back then. Lol. Great demonstration! :-)

  • @tecmath
    @tecmath11 жыл бұрын

    Thanks for watching. The reason for the same numbers.....luck I guess (Ididn't know this was the case!).

  • @ElizesFavorites
    @ElizesFavorites10 жыл бұрын

    This is awesome! Comes in perfect for my exams. Thanks for sharing xx

  • @janetheostrich
    @janetheostrich7 жыл бұрын

    This just blew my mind - thank you!

  • @tecmath
    @tecmath11 жыл бұрын

    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

    @LuminBySSS

    2 жыл бұрын

    @@sumatiranjan126 this is op. wtf r u talking about?

  • @Shadownes
    @Shadownes10 жыл бұрын

    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

    @itachiuchiha7842

    3 жыл бұрын

    ?

  • @eeeeoree4973

    @eeeeoree4973

    2 жыл бұрын

    @@itachiuchiha7842 what are you tryna know bro this comment was 7yo ago mybe before your birth 😂😂😂😅

  • @mrsricerocket5871
    @mrsricerocket58715 жыл бұрын

    I love it thank you! Finaly i can get my head around times tables

  • @PriscillaFarmer1
    @PriscillaFarmer110 жыл бұрын

    I LOVE this! Thank you for your time!

  • @willymcbilly635
    @willymcbilly63510 жыл бұрын

    FUCK WHY DID I NOT DISCOVER THIS BEFORE MY EXAMS

  • @nigelmoscrop9987
    @nigelmoscrop99879 жыл бұрын

    How about seven ,eight or nine in the equation , could be a bit messy , I'd say !

  • @named161
    @named1612 жыл бұрын

    Bro I literally got out of bed and grabbed my graph paper for this one, cheers mate! This is Awesome!!!

  • @tyleraustinpanton8290
    @tyleraustinpanton82906 жыл бұрын

    Thank you so much tecmath, your videos are GREAT keep posting. THANKS.

  • @seesharp53
    @seesharp535 жыл бұрын

    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

    @Olnx

    2 жыл бұрын

    agreed

  • @Alkis05

    @Alkis05

    2 жыл бұрын

    High digits alway a problem. Maybe work with complements: 100 x 60 - 97 x 2 - 3 x 60

  • @Alkis05

    @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.

  • @sbalogh53
    @sbalogh5310 жыл бұрын

    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.

  • @cynceresin9791
    @cynceresin979111 жыл бұрын

    I'm bad in math, but a visual learning and this make since to me. I will now continue practice .

  • @rellyfranc9836
    @rellyfranc98366 жыл бұрын

    Thank you so much I have struggled for the longest to find a trick that I can understand. Very grateful for this 😬😬

  • @mamuhanzo6791
    @mamuhanzo67917 жыл бұрын

    what about if any number has a zero ? for example 101x12 or 304x203

  • @user-zb8br6nw3e

    @user-zb8br6nw3e

    7 жыл бұрын

    do you find out

  • @tacorevenge87

    @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

    @mamuhanzo6791

    7 жыл бұрын

    Arturo Manaia ty bro

  • @SirKingHoff

    @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

    @moeinmk5262

    7 жыл бұрын

    SirKingHoff

  • @josephandthegang9433
    @josephandthegang94333 жыл бұрын

    When my teacher put this on my test I got it wrong LOL

  • @crazypuppypoker
    @crazypuppypoker10 жыл бұрын

    im in college and have always struggled with multiplication and this is the greatest thing i have ever learned

  • @Xake64
    @Xake649 жыл бұрын

    This is going to help me so much with my maths. Thanks man this is going to make a huge difference

  • @surortaal
    @surortaal10 жыл бұрын

    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 .

  • @TEE78SR
    @TEE78SR4 жыл бұрын

    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

    @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

    @sandrabowen8956

    4 жыл бұрын

    @@rileyk5228 thats a great idea lol

  • @nickname3114

    @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

    @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

    @x7teee

    3 жыл бұрын

    Dean Edwards 99 X 100 - 99 lmao

  • @ookalar665
    @ookalar6656 жыл бұрын

    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

  • @terrorzt4477
    @terrorzt44779 жыл бұрын

    You explained it very well, thank you

  • @NicolaiRathjen
    @NicolaiRathjen10 жыл бұрын

    But what about zeros? 100x100? 107x705?

  • @thornbottle
    @thornbottle10 жыл бұрын

    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

    @lynagranger7486

    4 жыл бұрын

    133×177

  • @maskerdasher343

    @maskerdasher343

    4 жыл бұрын

    I was thinking 12x12=144+12=156

  • @XiaoPangZi

    @XiaoPangZi

    4 жыл бұрын

    @@lynagranger7486 Please try that with lines, we would be done way before with any other method anyway xD

  • @theodoreroosevelt1858

    @theodoreroosevelt1858

    4 жыл бұрын

    yeah but thoughs are just examples bro soooooo whats 69*420 than in your head

  • @XiaoPangZi

    @XiaoPangZi

    4 жыл бұрын

    @@theodoreroosevelt1858 It's 28'980, why? (yes i did that in my head, there are tricks for this too..) BROOOO...

  • @aeroga4717
    @aeroga47177 жыл бұрын

    Thanks i got it, Flawlessly thanks for your exceptional explanation

  • @BabyTweetyPie13
    @BabyTweetyPie1311 жыл бұрын

    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!

  • @TD-jw4eu
    @TD-jw4eu10 жыл бұрын

    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

    @HUGO-sr4rc

    4 жыл бұрын

    Voila*

  • @Jarsia
    @Jarsia7 жыл бұрын

    interesting method, but I had them all figured in my head before the drawing was finished. still good for kids who struggle in math

  • @jeffkukkee
    @jeffkukkee Жыл бұрын

    I'm 40 and just learning this now.... amazing!!

  • @Coolblueocean2001
    @Coolblueocean200110 жыл бұрын

    Awesome video. Excellent presentation!!

  • @Garfunkels_Funky_Uncle
    @Garfunkels_Funky_Uncle8 жыл бұрын

    185 people work for common core

  • @jack1823
    @jack18238 жыл бұрын

    multiply 998 × 898

  • @claireryder

    @claireryder

    8 жыл бұрын

    LOL

  • @IvGBeast

    @IvGBeast

    8 жыл бұрын

    +Faisal Basha 896,204

  • @EdJ589

    @EdJ589

    8 жыл бұрын

    +Faisal Basha exactly what I thought 1 min into the video. ha, draw those lines.

  • @Unufalready

    @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

  • @fadelali330
    @fadelali3302 жыл бұрын

    You explained it clearly,thank you

  • @suspicious_coconut_water
    @suspicious_coconut_water2 жыл бұрын

    Dude you just helped me learn quick math in my head

  • @lewizgamezalot3577
    @lewizgamezalot35776 жыл бұрын

    What is 999x999? Edit:that’s many lines

  • @redamber483

    @redamber483

    5 жыл бұрын

    a big oll 998001

  • @pau.diaz0

    @pau.diaz0

    5 жыл бұрын

    that's hard but you can do it in 30 minutes

  • @mazxbv

    @mazxbv

    5 жыл бұрын

    @@pau.diaz0 this is an easier method, well worth a watch kzread.info/dash/bejne/Y6OCpKeNkcyaosY.html

  • @seanwrfps

    @seanwrfps

    5 жыл бұрын

    TeamUSASportsFan Or you could just do 999*1000 = 999000 Take away 999*1 from 999000 = 998001

  • @Andreea19992000
    @Andreea1999200010 жыл бұрын

    his voice is klling me(≧▽≦)

  • @calderdash9975
    @calderdash99753 жыл бұрын

    Thanks, think that's one of my favourite, maths tricks of all time.

  • @edwarddanial2584
    @edwarddanial258411 жыл бұрын

    you do a great job.I also like to times two #:s by 11 in my head faster than a calculator.simplistic yet unique

  • @RossPotts
    @RossPotts9 жыл бұрын

    Horry clap that's easy!

  • @GrahamJones

    @GrahamJones

    9 жыл бұрын

    That's a neat trick - haven't seen that before

  • @Marisueksu
    @Marisueksu10 жыл бұрын

    999x999 plz :V

  • @jhernandez125

    @jhernandez125

    6 жыл бұрын

    Marisueksu hahaha just said that on my comments lol

  • @jasonsonnenfeld1985

    @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

    @YuvrajSingh-vm8lt

    6 жыл бұрын

    pretty late but, pick a dotted line for representing 10, another line for -1, now do it.

  • @lavendergaming7830
    @lavendergaming78305 жыл бұрын

    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!!!!

  • @debadeepdatta
    @debadeepdatta3 жыл бұрын

    Your tricks are super awesome.

  • @nigen
    @nigen10 жыл бұрын

    and this is why the japanese are good at math ^^

  • @abs2100

    @abs2100

    6 жыл бұрын

    nigen it’s actually in Indian method

  • @IGleeker

    @IGleeker

    6 жыл бұрын

    It’s not really difficult to do it the conventional way to be honest

  • @frankh1786

    @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

    @swagpiggy9296

    3 жыл бұрын

    @@abs2100 i think its a method that someone invented and everyone says its theirs because its a Chinese method

  • @abs2100

    @abs2100

    3 жыл бұрын

    @@swagpiggy9296 i commented this 2 years ago lmao but go off

  • @miroslavsabo3918
    @miroslavsabo39188 жыл бұрын

    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... :=

  • @keatoncallaghan3101
    @keatoncallaghan31017 жыл бұрын

    this is a massive help for my year 9 exam going into year 10 its really important i nail my times tables thanks

  • @theempath8244
    @theempath82443 жыл бұрын

    I have dyscalculia and this has helped me to understand multiplication, so I thank you very much for his video.

  • @brandonchen9330
    @brandonchen93309 жыл бұрын

    0:51 that looked so fucked up .....

  • @samwiseshanti

    @samwiseshanti

    8 жыл бұрын

    +Maestro 312 Ahahaha!

  • @jakep9685

    @jakep9685

    6 жыл бұрын

    Ur so dirty bro

  • @syedking5080

    @syedking5080

    6 жыл бұрын

    you have sooo dirty mad guy

  • @fopperer
    @fopperer10 жыл бұрын

    oh wow, thats a really easy way too waste your time

  • @pau.diaz0

    @pau.diaz0

    5 жыл бұрын

    hahaahhaahhahahahahahahahaahhaahahhahahahahahahahaha

  • @mazxbv

    @mazxbv

    5 жыл бұрын

    it's a different way of thinking about the problem; it's maths

  • @Nezethegreat

    @Nezethegreat

    4 жыл бұрын

    That a really easy way to *waste your time*

  • @dannymcphee
    @dannymcphee9 жыл бұрын

    Really cool Mr. Tecmath, quite an interesting diversion, and refreshing mental exercise.--Thanx

  • @irfangamerhd3394
    @irfangamerhd33948 жыл бұрын

    Thanks for showing the maths work

  • @Althexia
    @Althexia9 жыл бұрын

    i can do the math faster in my head, lol..

  • @anjollabanton230

    @anjollabanton230

    5 жыл бұрын

    Althexia bully for you.

  • @frankh1786

    @frankh1786

    5 жыл бұрын

    Althexia well you’re too cool, Want a cookie?

  • @petrusvenasiu3630
    @petrusvenasiu36303 жыл бұрын

    What an amazing method! Thanks for making my life easy

  • @Shad0wDarkNess
    @Shad0wDarkNess10 жыл бұрын

    Absolutely fantastic!

  • @TheDoggirl3
    @TheDoggirl3Ай бұрын

    Thanks for teaching this new way that I never learned in my school days.

  • @TheDoggirl3

    @TheDoggirl3

    Ай бұрын

    Especially when your partially deaf like me.

  • @lindsayaustria4474
    @lindsayaustria44748 жыл бұрын

    Thanks it helped me a lot !

  • @theicedevil
    @theicedevil2 жыл бұрын

    This method i can actually do in my head.

  • @christinasanchez6692
    @christinasanchez669210 жыл бұрын

    That is a really cool trick great job

  • @genji2645
    @genji264511 жыл бұрын

    Nailed it.!.!.!. I will share this!!

  • @apolinarcisneros2784
    @apolinarcisneros27849 жыл бұрын

    That's nice.....thank you for sharing it. You have a great day.

  • @vinalxser
    @vinalxser9 жыл бұрын

    Omg thanks! I finally understand this

  • @joanne3747
    @joanne37478 жыл бұрын

    This video is so help full

  • @frinduangelo4375
    @frinduangelo437510 жыл бұрын

    this is realy good and helpful. pritty easy as well

  • @MechanicsStudents
    @MechanicsStudents10 жыл бұрын

    YOU ARE SO HELPFUL OMG!!!!

  • @vaishnavic6632
    @vaishnavic66323 жыл бұрын

    Great ...first time seen this kind of calculation 👌

  • @maryj9684
    @maryj96845 жыл бұрын

    I HAVE MY SAT TOMORROW I NEEDED THIS 👊🏿😂😂

  • @MONKEYBALLZism
    @MONKEYBALLZism10 жыл бұрын

    So relieved I always hated the other way they teach in school one thing learned today :)

  • @Mario-pw4pq
    @Mario-pw4pq6 жыл бұрын

    so cool am gonna master this now

  • @jhairoaquillecruz6419
    @jhairoaquillecruz64192 жыл бұрын

    Thx bro this very helpful

  • @ChastityBTheEntrepreneur
    @ChastityBTheEntrepreneur9 жыл бұрын

    OMG!!!! This is phenomenal lol! This makes math that much more fun to do.

  • @kathleendrury2476
    @kathleendrury24766 жыл бұрын

    This is amazingly awesome... thank you so much!! :D :D :D

  • @3mjwan941
    @3mjwan9415 жыл бұрын

    Thank you soooo much bro this is the best thing ever

  • @sirmagid2962
    @sirmagid29626 жыл бұрын

    nice work

  • @andrewbell466
    @andrewbell46610 жыл бұрын

    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

  • @jaydensvideos7541
    @jaydensvideos75416 жыл бұрын

    Thanks for the video its helped me 😁😀

  • @justcheryl5568
    @justcheryl55684 жыл бұрын

    It works and used common sense to adjust to zeros or numbers greater than 8 - very cool

  • @SaadSuleman
    @SaadSuleman10 жыл бұрын

    Brilliant!!! Wish I knew this when I was at school...... :(

  • @cgoodloe
    @cgoodloe6 жыл бұрын

    This is awesome!

  • @jennistand7955
    @jennistand79559 жыл бұрын

    That is freaking awesome! ;)

  • @jimsung3447
    @jimsung34475 жыл бұрын

    Good job 👏🏻

  • @saeedasuleiman1903
    @saeedasuleiman190310 жыл бұрын

    really nice thx sir

  • @olujoe7
    @olujoe74 жыл бұрын

    Just brilliant.

  • @RajeshTutorials
    @RajeshTutorials3 жыл бұрын

    Very nice

  • @velmurugan503
    @velmurugan5036 жыл бұрын

    No words awesome 👌

  • @akivaSk
    @akivaSk3 жыл бұрын

    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

  • @minxxyo5770
    @minxxyo5770 Жыл бұрын

    Thank you!

  • @RandiRain
    @RandiRain10 жыл бұрын

    That is just too cool!!

  • @thecutelittleleaf
    @thecutelittleleaf10 жыл бұрын

    Wow! That's so interesting!

  • @Lace_Loves_Icecream
    @Lace_Loves_Icecream Жыл бұрын

    This man just gave me some Knowledge that I will use to confuse my math teacher

  • @adzzmohamed5795
    @adzzmohamed57953 жыл бұрын

    Thanks mate 🙏

  • @aimg0d-pubgmobile905
    @aimg0d-pubgmobile9056 жыл бұрын

    OMG Thanks a lot that will be a very good thing for me to do in school