The Japanese Multiplication Strategy

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  • Опубликовано: 17 янв 2016
  • This strategy for solving multiplication problems can be very helpful when solving problems with larger numbers without a calculator handy.

Комментарии • 155

  • @zylomantific
    @zylomantific 3 года назад +251

    I shall use this knowledge to confuse my math teacher

  • @agr8443
    @agr8443 2 года назад +52

    This is fascinating. As someone who has ADD and struggled with math my entire life, I was able to learn this and perfect it from this one video because I’m a visual learner. You’re a great teacher , wish I would have had a math teacher like you back when I was in school ❤️

  • @Rupeshkumar-dq1rs
    @Rupeshkumar-dq1rs 3 года назад +9

    0:35 12×13
    2:24 15×23
    4:46 37×19
    So nice trick
    Thanks 🙂🙂

  • @atomicblastoise
    @atomicblastoise Год назад +8

    Great, now I know that I suck at math in two langauges...

  • @widdershinnz
    @widdershinnz 3 года назад +8

    LIFECHANGING holy crap I’m able to math now!!!

  • @poonkake6944
    @poonkake6944 3 года назад +4

    Ive been struggling in maths so any video on RUclips helps and the more I know then the better of i will turn out in the future thankyou for Posting this video

  • @robbiewright9573
    @robbiewright9573 Год назад +6

    I was today old when I learned this!! 55 years old. Amazing!!

    • @toastedtarts4044
      @toastedtarts4044 Год назад +1

      37 years old here. This would’ve made elementary school easier and would’ve made multiplication fun

    • @Jon42_Litor
      @Jon42_Litor Год назад

      44 yrs, young rite here

  • @KeindlyAvendano
    @KeindlyAvendano 3 года назад +13

    Woah this is actually pretty cool

  • @MrClebophd
    @MrClebophd 3 года назад +29

    Hi! This is interesting. However, I think that you could improve the algorithm by combining simple one-digit multiplications that most children learn by heart. Even in Sweden, we do this. In the last example, instead of carefully count every 63 intersections in one "bubble", we write 7 x 9 = 63.

    • @Ale-hu8yo
      @Ale-hu8yo 3 года назад +1

      Could you please further explain? I don’t fully understand.

    • @Ale-hu8yo
      @Ale-hu8yo 3 года назад +1

      Oh now I get it lmao she counts out 60 intersections 😂

    • @Ale-hu8yo
      @Ale-hu8yo 3 года назад

      Like who tf does that

    • @kylewolfe_
      @kylewolfe_ Год назад

      At that point it's really no different from long multiplication. It's just a visual representation of it

  • @enlosluceros7236
    @enlosluceros7236 Год назад +2

    I never liked math but I love this method and I'm going to teach it to my children.

  • @jimclarke9550
    @jimclarke9550 2 года назад +5

    Excellent example, easy to understand.

  • @KingEspionage
    @KingEspionage Год назад +1

    I shall now be smarter starting today

  • @raymondmadsen3541
    @raymondmadsen3541 3 года назад +1

    great video. Thanks

  • @chaksanu
    @chaksanu Год назад

    Mam its quite fascinating, infact your way of explaining its amazing ...Thank a ton for sharing this trick.

  • @kekecharms7283
    @kekecharms7283 3 года назад +4

    Thank you!This is kinda very easy

  • @aldolowe7340
    @aldolowe7340 2 года назад +1

    Awesome lol thanks for this video. I couldn’t figure out how to use this solution with digits over 4

  • @pascalkhanna6761
    @pascalkhanna6761 3 года назад +2

    I liked a subbed tysm it worked and this is very educational thank u

  • @vennizerpestiodelaaustria1496
    @vennizerpestiodelaaustria1496 2 года назад +1

    Thank you so much

  • @KainobiFox
    @KainobiFox 3 года назад +1

    This will be helpful for my maths at college

  • @alexkpi1h_iykwim879
    @alexkpi1h_iykwim879 3 года назад +21

    Quick question, how would I do it with a equation like 360*23 or something?

    • @t.j.carlson7913
      @t.j.carlson7913 3 года назад +7

      Triple digits would require you to draw a third line through your intersections

    • @admalakoff
      @admalakoff 3 года назад +1

      @@t.j.carlson7913 But you don't count anything on the zero line or use a red line to not confuse yourself

    • @legendarygamer1207
      @legendarygamer1207 2 года назад +6

      Just do 36 × 23 and add the zero in the last simple

  • @siana6662
    @siana6662 3 года назад +4

    I’m by blood Japanese here to give u support

    • @SuperFootball78
      @SuperFootball78 3 года назад +1

      Really? I wonder what Japanese blood looks like? Is it different to the rest of the human race?....just kidding happy new year 😍

    • @follower3793
      @follower3793 3 года назад

      @@SuperFootball78 that was kind of sus, japanese blood? Are you a Ghoul or something xD?

    • @unrea1ist1c33
      @unrea1ist1c33 3 года назад

      @@follower3793 good one lmao

  • @myathehappy_1
    @myathehappy_1 2 года назад +11

    wondering how to do zeros, like 20 X 20?

    • @breannamarshall1467
      @breannamarshall1467 2 года назад +4

      With zeros , you can add a zero to the end so eg 23*20. Do 23*2=46 and add a zero on end so 23*20=460. I don't know if this is the proper way but it's how I would do it

    • @JamilKhan-hk1wl
      @JamilKhan-hk1wl 2 года назад

      You factorise the 10 first, 2*10*2*10 = (2*2)*(10*10). So do the 2*2 then multiply by 100

    • @nikgasparinatos8532
      @nikgasparinatos8532 2 года назад

      @@breannamarshall1467 but what happens for example if the zero is in the middle, like 32*107 ?

  • @ronaldjorgensen6839
    @ronaldjorgensen6839 3 года назад +1

    do the jump to trigonometry solid squares show a square root once only or do some calculus can you show base 8 math or octal

  • @ZIDANABDULJABBAR
    @ZIDANABDULJABBAR 5 месяцев назад

    This is great

  • @rei6078
    @rei6078 Год назад

    Wow, I wish they taught this method in my school.

  • @Cardinal11
    @Cardinal11 3 года назад +1

    thanks

  • @LordDeadSpider
    @LordDeadSpider 3 года назад

    Wow that is neat

  • @gachalifeglow
    @gachalifeglow 3 года назад

    Thank you for teaching me your ways all mighty one

  • @parthim2317
    @parthim2317 2 года назад +1

    Hi I'm from India Tamil Nadu I can understand this video thanks 😊 so much 😊

    • @yourbro7505
      @yourbro7505 5 месяцев назад

      Is there a need to mention your country??

  • @KingEspionage
    @KingEspionage Год назад +1

    Thanks

  • @nateatkins4593
    @nateatkins4593 2 года назад

    This is so cool

  • @priyarompicherla6024
    @priyarompicherla6024 Год назад +1

    What if you had a 3 digit number, also are you gonna draw 9 lines if the number was like 99×99

  • @sasiduharshitha1983
    @sasiduharshitha1983 2 года назад

    Thx

  • @kellsgr.6960
    @kellsgr.6960 2 года назад

    What is the number has a 0 in it?
    How much line would denote 0?

  • @k..1987
    @k..1987 2 года назад

    Qt fun to learn a new method.
    Jks aprt I thought u were drawing doll

  • @wanhedacoimhthithe74
    @wanhedacoimhthithe74 3 года назад +1

    Japanese math is with less lines in the math you are doing. This can be helpful in some cases but not proper way. Some Japanese math can be with more lines but carrying a number over and adding on to your smaller circles before adding it to your final answer.

  • @user-uu6pk8cu7x
    @user-uu6pk8cu7x 5 месяцев назад

    As a japanese, I have never seen this wethod. However, its interesting.

  • @TheItalianStallion825
    @TheItalianStallion825 3 года назад +1

    My time has come
    Meet the Trickster

  • @jake-gd8rb
    @jake-gd8rb 2 года назад +1

    Are the steps the same for single and triple digit numbers like 8x4 or 125x144 or is there different methods if so do you know where I can find a video explaining it?

    • @mikeparks7053
      @mikeparks7053 Год назад

      It’s the same no matter how many digits. I just saw a similar video on Reddit a couple days ago. It’s easier especially if you are a visual learner or if you know your single digit multiplication. Very original alternative for multiplying.

  • @SariennMusic73
    @SariennMusic73 Год назад +2

    I love this! Though I'd need a MUCH bigger paper if the math was smth like
    52,087 x 3827
    Just saying 😂

  • @jake-gd8rb
    @jake-gd8rb 2 года назад

    Does it matter which angle you start your diagonal lines from left top corner to bottom right or upper right to bottom left and does the first digit on both numbers always go above the second digits lines would it matter

    • @mikeparks7053
      @mikeparks7053 Год назад

      The angle should be angled like they have it. I personally would start with ones spot

  • @choou1523
    @choou1523 2 года назад

    Nice

  • @Lace_Loves_Icecream
    @Lace_Loves_Icecream Год назад

    This knowledge will be used to confuse my teacher

  • @Iamkrystamarie
    @Iamkrystamarie Год назад

    I need more detail on counting the inner sections. I need you to slow down and zoom in on what your touching and counting please

  • @spudbencer7179
    @spudbencer7179 Год назад

    I don't understand why people need this. Never needed it in school and I have ADHD and I consider myself an average mind. I could calculate thiese things in my head in no time eversince we learned the big multiplication table.. which was in what? 3rd grade or whatever. I was maybe 6 or 7 years old. More like 7 or 8 actually.
    By the time you counted to 63 I had already calculated the multiplication in my head for the 3rd time and by the time I would finish counting 63 places I would have to count again because I probably miscounted.

  • @pitipongpuprasurt1756
    @pitipongpuprasurt1756 3 года назад

    Can you do 45 x 38 for me ?

  • @opposites-369
    @opposites-369 Год назад

    Me as Indonesian admit the best method for math is India (Hindi) method.

  • @raivennllagasoracion3072
    @raivennllagasoracion3072 Год назад

    You got simple answer in multiply

  • @dawaselden2371
    @dawaselden2371 Год назад

    You should be my teacher

  • @Mahendravlogs786
    @Mahendravlogs786 3 года назад

    Teach as 3 digital number to calculate

  • @JustinK0
    @JustinK0 2 месяца назад

    but if you have a whiteboard and a marker/pencil, its not any different than just doing it the regular way
    the real trick is doing it in your head,
    012
    013
    x------
    in your head -> 2x3=6, 2+3 = 5, 1x1 = 1
    of course i started with the 1's column first, so just reverse, 156

  • @sachinmanu1286
    @sachinmanu1286 2 года назад

    102×103= how can do use this method

  • @houseofdismemberment
    @houseofdismemberment 3 года назад

    Why did you make something so simple so complex

  • @Top.G.Andy.C
    @Top.G.Andy.C 3 месяца назад

    You should of shown a variety of numbers, two digit and three digit multiplication maybe even 4 digit 😊

  • @Mahendravlogs786
    @Mahendravlogs786 3 года назад

    4 digital number

  • @Lana_UK_88
    @Lana_UK_88 2 года назад

    this it is so hard i try this rule more than 10 times i do not find value 18 * 38 🤔🤔

  • @timmonsflowers
    @timmonsflowers Год назад

    General Kenobi

  • @didiechannel6335
    @didiechannel6335 3 года назад +1

    i dont get ot

  • @FancyMinecraftMan102
    @FancyMinecraftMan102 2 месяца назад

    i am stuck in the walls of the ones place. the nightmare is coming. i am stuck in the walls of the ones place. do not talk to the one in the ones place

  • @Gizzard4400
    @Gizzard4400 3 года назад

    Wow so 37x99 would be alot of friggin counting

  • @FancyMinecraftMan102
    @FancyMinecraftMan102 2 месяца назад

    SECOND GRADE SECOND GRADE!!!!!!

  • @raivennllagasoracion3072
    @raivennllagasoracion3072 Год назад

    345 the answer
    15×23

  • @322281cm
    @322281cm Год назад

    How do I add *.5?

    • @CatGamer02
      @CatGamer02 6 месяцев назад

      That would be changed into division by 2 so that wouldn't be a multiplication problem

  • @basudevnepaligupta2056
    @basudevnepaligupta2056 2 года назад

    Somebody solve this number 99*99 this trick is very difficult to apply in large number ..this trick is only possible to fast in very small number like 22*22 and 12*31

  • @raivennllagasoracion3072
    @raivennllagasoracion3072 Год назад

    703 the answer

  • @096Vkant
    @096Vkant 3 года назад

    Tickling my ear

  • @FancyMinecraftMan102
    @FancyMinecraftMan102 2 месяца назад

    WHY?!??! YOU MAKE ME GONE MAD!!!!!!!!!!

  • @chocolatecornetnothermitcr6159
    @chocolatecornetnothermitcr6159 2 года назад +2

    Why is it called the Japanese multiplication strategy?

    • @lolkek1288
      @lolkek1288 2 года назад +1

      Because japanese build their homes from sticks

    • @arshanshariff7484
      @arshanshariff7484 Год назад

      It is not clear that weather it's Chinese or japanese, this method also called line and stick method. Maybe for the reason to keep it simple they named as...

    • @chocolatecornetnothermitcr6159
      @chocolatecornetnothermitcr6159 Год назад

      I, and probably all the Japanese don’t learn this method. Instead, for example, to calculate 12×31, a normal method is used(I’m not sure if it’s displayed correctly):
      12
      X 31
      ---
      1 2
      3 6
      ---
      3 7 2

  • @FancyMinecraftMan102
    @FancyMinecraftMan102 2 месяца назад

    you should of started making caveman sounds and farting politely

  • @littlecheesy1305
    @littlecheesy1305 3 года назад +2

    19*91 😂

  • @Mondos2001
    @Mondos2001 Год назад +1

    Hai

  • @sweetcoffeeletter2470
    @sweetcoffeeletter2470 2 года назад

    so does it mean japanese people still uses this method? 🤨

  • @raivennllagasoracion3072
    @raivennllagasoracion3072 Год назад

    12×13=156

  • @zakbutz8226
    @zakbutz8226 3 года назад

    I feel like this is a cool trick but it’s honestly so inefficient. Maybe it’s a good means of visualizing the numbers but damn this could take a while

    • @CatGamer02
      @CatGamer02 6 месяцев назад

      I'm trying to figure out the limit. I think it's 4. So for example if there's a number with a 5 or higher in any of its places, you wouldn't use this method on it.

  • @dangerousbeans2907
    @dangerousbeans2907 Год назад

    It’s interesting but so very inefficient.

  • @capitanqueso
    @capitanqueso 3 года назад

    Yeah, that's why they had to invent the calculator, they were running out of paper by the end of a school year

  • @9daanyy0
    @9daanyy0 Год назад

    This has a lot of logic…but drawing all those lines…damn! Imagine calculating 99999999 x 99999999 😂

  • @TheShadoman14
    @TheShadoman14 2 года назад

    This takes away allll thinking lol

  • @lookingforalvin333
    @lookingforalvin333 3 года назад

    i cant

  • @azusome1924
    @azusome1924 2 года назад

    I've never used it :/

  • @charliechan8063
    @charliechan8063 2 года назад

    Why didn’t they teach me thos

  • @kinkyoldman8314
    @kinkyoldman8314 2 года назад

    Only I Japanese do not know where to calculate.

  • @tammydeleon4916
    @tammydeleon4916 2 года назад

    It doesn't work I did it

  • @FancyMinecraftMan102
    @FancyMinecraftMan102 2 месяца назад

    WHY

  • @didiechannel6335
    @didiechannel6335 3 года назад +2

    *it

  • @non_dayo
    @non_dayo 3 года назад +1

    Hahahahaha Japanese never do that😂 I'm japanese but I've never seen the people calculate like that lol

  • @immrnoidall
    @immrnoidall Год назад

    Much easier. NOT. Still crazy amazing though.

  • @MALAYALAMSTATUSUPLOADER
    @MALAYALAMSTATUSUPLOADER 3 года назад +1

    99 x 99
    Oke bye😋😋😂

  • @sahulatcentertaxila2992
    @sahulatcentertaxila2992 3 года назад +1

    5000*1000 do it with japanese method

  • @TheOldmanc
    @TheOldmanc Год назад

    It maybe nice but calculator is faster.

  • @DrMigas
    @DrMigas 3 года назад

    jajaj useless