This man just changed my perception towards maths ,I never knew calulationg could be so interesting.Thanks man!
@olufred94243 жыл бұрын
Your channel has increased my test scores by so much. Thank you very much 😊
@00gamer210 жыл бұрын
This is basicly a visualization of the foil method you would use in expanding brackets, and extending that to two numbers i.e. 14 * 12 would be (10 + 4)(10+2) = 100 + 20 + 40 + 8 = 168. Expressing this in a algebraic form is probably more space efficient. Great video, btw.
@christiankong58745 жыл бұрын
This got patched in the latest update
@aishao52145 жыл бұрын
Wut
@Lennyst4 жыл бұрын
...
@selmanbela64554 жыл бұрын
Do you mean this dosent work anymore?
@liamcabildo4 жыл бұрын
It was a joke relax..
@kubakakauko4 жыл бұрын
hahahah, this made me lough
@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
@neozinicola73914 жыл бұрын
I shocked my teacher when I did this on a test
@lucasplayz20913 жыл бұрын
Haha
@eeeeoree49733 жыл бұрын
Well ,that’s amazing
@cedricdorian21733 жыл бұрын
instablaster...
@arvahello71713 жыл бұрын
I'm planning on doing this for my gcse bc i cant do long multiplication
@pigletandeeyore.11993 жыл бұрын
Same
@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.
@LuminSSS3 жыл бұрын
@@sumatiranjan126 this is op. wtf r u talking about?
@tecmath11 жыл бұрын
Thanks for watching. The reason for the same numbers.....luck I guess (Ididn't know this was the case!).
@willymcbilly63511 жыл бұрын
FUCK WHY DID I NOT DISCOVER THIS BEFORE MY EXAMS
@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.
@crazypuppypoker11 жыл бұрын
im in college and have always struggled with multiplication and this is the greatest thing i have ever learned
@CaddraLophat9 жыл бұрын
That's amazing, Oml thank you maths has never been easier
@cynceresin979111 жыл бұрын
I'm bad in math, but a visual learning and this make since to me. I will now continue practice .
@ookalar6657 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
@calderdash99753 жыл бұрын
Thanks, think that's one of my favourite, maths tricks of all time.
@ElizesFavorites10 жыл бұрын
This is awesome! Comes in perfect for my exams. Thanks for sharing xx
@theempath82443 жыл бұрын
I have dyscalculia and this has helped me to understand multiplication, so I thank you very much for his video.
@Xeidasx10 жыл бұрын
thank you for showing this to me!!!! i wish they had taught us this in school...
@thuglover8710 жыл бұрын
Same here stupid teaching methods were given to us
@Dr4g0nW00d10 жыл бұрын
they never learn u something useful in school
@MrMattbarbs10 жыл бұрын
Grammer might be nice.
@EETechs10 жыл бұрын
Matt Barbour duuur, thirr nevers learns mes this stuf'SSS. I fur sur dum'.
@rajangamkannan92817 жыл бұрын
Xeid
@chtitmog11 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! :-)
@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.
@Olnx2 жыл бұрын
agreed
@Alkis052 жыл бұрын
High digits alway a problem. Maybe work with complements: 100 x 60 - 97 x 2 - 3 x 60
@Alkis052 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.
@nigelmoscrop99879 жыл бұрын
How about seven ,eight or nine in the equation , could be a bit messy , I'd say !
@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 😬😬
@janetheostrich8 жыл бұрын
This just blew my mind - thank you!
@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.
@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
@TheDoggirl35 ай бұрын
Thanks for teaching this new way that I never learned in my school days.
@TheDoggirl35 ай бұрын
Especially when your partially deaf like me.
@jeffkukkee Жыл бұрын
I'm 40 and just learning this now.... amazing!!
@Snagglefratz10 жыл бұрын
I'm an old dude and I got this right away. It's really cool. It's a shame they didn't teach this when I was in school.
@named1612 жыл бұрын
Bro I literally got out of bed and grabbed my graph paper for this one, cheers mate! This is Awesome!!!
@BlindManBert11 жыл бұрын
Very nicely described and nice looking!! I posted a similar discussion in my “Math Rules” channel. Several folks commented out that this technique is not truly Japanese. In fact, it was apparently used to teach kids how to use an abacus perhaps up until thirty years ago, but since then it’s been dropped from the curriculum. So Japanese students today would never be taught this approach. I don’t refer to it as “Japanese” as much as the “graphics crossing” approach for lack of a better name.
@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
@itachiuchiha78423 жыл бұрын
?
@eeeeoree49733 жыл бұрын
@@itachiuchiha7842 what are you tryna know bro this comment was 7yo ago mybe before your birth 😂😂😂😅
@mamuhanzo67918 жыл бұрын
what about if any number has a zero ? for example 101x12 or 304x203
@user-zb8br6nw3e8 жыл бұрын
do you find out
@tacorevenge878 жыл бұрын
Use the vigesimal system mate, that is why the mayas invented it, to deal with the zero, also invented by the mayas.
@mamuhanzo67918 жыл бұрын
Arturo Manaia ty bro
@SirKingHoff7 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.
@moeinmk52627 жыл бұрын
SirKingHoff
@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.
@mmedeuxchevaux7 жыл бұрын
it's still amazing.
@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!
@lavendergaming78306 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!!!!
@keatoncallaghan31018 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
@tyleraustinpanton82906 жыл бұрын
Thank you so much tecmath, your videos are GREAT keep posting. THANKS.
@suspicious_coconut_water2 жыл бұрын
Dude you just helped me learn quick math in my head
@Rawrasur4 жыл бұрын
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
@tecmath4 жыл бұрын
Glad to have helped.
@BlindManBert11 жыл бұрын
Answer: the intiial examples are typically quite simple and don’t involve both large numbers of crossings (like 19 x 81) or large number of carries in the addition phase. This is one of the limitations of this “graphics crossings” approach, I would say.
@theicedevil3 жыл бұрын
This method i can actually do in my head.
@Examinx10 жыл бұрын
This is just another form of rewriting the numbers into a sum and multiplying them. For example, the 212*13 can be rewritten as (2*100+1*10+2)*(1*10+3). You get 2*1000+(6+1)*100+(2+3)*10+6=2756. It's probably quicker to think of how to expand the number, multiply, and add before you do it, since doing something like 212*(10+3) is quicker (2120+636=2756) than expanding everything. If you have 9's, you can do subtraction instead. 25*19=25*(20-1)=500-25=475.
@mrsricerocket58715 жыл бұрын
I love it thank you! Finaly i can get my head around times tables
@petrusvenasiu36303 жыл бұрын
What an amazing method! Thanks for making my life easy
@DannnnnyW11 жыл бұрын
Hey thanks for the well instructive informative video. I was firs introduced to this method on KZbin 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! *****
@MONKEYBALLZism10 жыл бұрын
So relieved I always hated the other way they teach in school one thing learned today :)
@justcheryl55684 жыл бұрын
It works and used common sense to adjust to zeros or numbers greater than 8 - very cool
@debadeepdatta4 жыл бұрын
Your tricks are super awesome.
@captainbueno10 жыл бұрын
This is interesting, and it is worthwhile to look at it for a bit and understand why it works, but on average you will get the answer more quickly with numeric "long" multiplication.
@fadelali3302 жыл бұрын
You explained it clearly,thank you
@Xake649 жыл бұрын
This is going to help me so much with my maths. Thanks man this is going to make a huge difference
@VishantR2211 жыл бұрын
for multiplication by 9, 99, or 999 etc.. Eg: 999 * 99 Step 1: Add two zeros(for two 9's) to 999 = 99900 Step 2: Subtract 999 from 99900 = 98901 Step 3 : Congrats, done in two steps :D
@genji264511 жыл бұрын
Nailed it.!.!.!. I will share this!!
@irfangamerhd33948 жыл бұрын
Thanks for showing the maths work
@aeroga47178 жыл бұрын
Thanks i got it, Flawlessly thanks for your exceptional explanation
@dannymcphee10 жыл бұрын
Really cool Mr. Tecmath, quite an interesting diversion, and refreshing mental exercise.--Thanx
@ethitlan4 жыл бұрын
Whoever devised this is built different
@gesunheit11 жыл бұрын
Super awesome! I'm a person of two things math and complications.
@Lace_Loves_Icecream2 жыл бұрын
This man just gave me some Knowledge that I will use to confuse my math teacher
@detroitmade_jts10 жыл бұрын
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
@stus21597 жыл бұрын
You were thinking about teaching people this method?? Are you dense? No wonder our education system is fucked.
@firstnamelastname37435 жыл бұрын
School should really teach this. This japanese technique is really helpful
@guitarlessonsformortalssan861910 жыл бұрын
The more ways you have to look at a problem the better, so I'm going to say cool method for building a mental picture.
@Coolblueocean200111 жыл бұрын
Awesome video. Excellent presentation!!
@vaishnavic66323 жыл бұрын
Great ...first time seen this kind of calculation 👌
@maryj96845 жыл бұрын
I HAVE MY SAT TOMORROW I NEEDED THIS 👊🏿😂😂
@meshugunner11 жыл бұрын
Excellent. Not nearly as fast as using reference numbers or direct multiplication but it's very graphic and clear. It doesn't involve some seemingly magical formula like the Vedic methods. IMO it would be even more striking if the lines for the 10s & 1s were in contrasting colors. I think I will use this to teach my young grandson. Thanks.
@jessicamoneaevans11714 жыл бұрын
This is so awesome. Go explain. My boyfriend not that good in math and this help so much.
@tecmath4 жыл бұрын
Thanks
@honkhonk80099 жыл бұрын
your accent is very relaxing
@gamenut11210 жыл бұрын
wow...that makes multiplication like 30x easier (pun intended but also not intended) i think ill use this way of multiplication now...
@tecmath11 жыл бұрын
Yes - that is a limitation :)
@ProjSHiNKiROU11 жыл бұрын
To save lines, you can use a thick line to represent a number like 2.
@TEE78SR5 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???
@rileyk52284 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
@sandrabowen89564 жыл бұрын
@@rileyk5228 thats a great idea lol
@nickname31144 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 🥄
@nickname31144 жыл бұрын
doing higher number is a pain try 6789 19x9, 99x99 is there a trick around this problem to many lines
@x7teee4 жыл бұрын
Dean Edwards 99 X 100 - 99 lmao
@christinasanchez669210 жыл бұрын
That is a really cool trick great job
@luisj.torres817810 жыл бұрын
Now my math teacher will be proud!
@kyellmasarate96546 жыл бұрын
Honestly I dreamed about this after my birthday. Before I saw this I have proof that I made this type of multiplying numbers by myself. The dream was so realistic. It really taught me how to do this. After that dream and I woke up I was so nervous try this. But I really tried what I had seen in my dream, and it was true! Please, can anyone tell me who invented this because it was just an invention of my dream.
@matejbanik25054 жыл бұрын
Thank you you are better than teachers😁
@tecmath4 жыл бұрын
I am a teacher. But thanks 😁
@bobbybang342111 жыл бұрын
See I have a very very hard time in math now you just made math a bit more interesting
@laxmimehta42464 жыл бұрын
AS i am a 10 year old i feel a bit confused at first but then when i watched the video i felt as it this rocked this world!!!!!!!!!
@ZakarooNetwork6 жыл бұрын
Thank You Sir. This has Just confirmed genius is Real and Ancient.
@frinduangelo437510 жыл бұрын
this is realy good and helpful. pritty easy as well
@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-sr4rc5 жыл бұрын
Voila*
@HanneleKormano10 жыл бұрын
An interesting way to visualize multiplication - it looks like magic, but it is no different conceptually from working it out the long way.
@josephandthegang94333 жыл бұрын
When my teacher put this on my test I got it wrong LOL
@winlalitha10 жыл бұрын
Really Really Superb Technique
@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
@Mountain_Terror9 жыл бұрын
You explained it very well, thank you
@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 .
@PriscillaFarmer110 жыл бұрын
I LOVE this! Thank you for your time!
@SteveFrenCH18893 жыл бұрын
This is bonkers🤯🤯🤯
@QuinchGaming10 жыл бұрын
OMFG why wasn't I taught this at school! For "practical" multiplcation solutions this works perfectly.
@LuxTale11 жыл бұрын
I tried that with a 110 and 200. Easy enough. You don't put them. You put the numbers above zero in it's respective place, and then you count the zeroes there are between the two numbers. In this case, the answer with the other numbers would be 22, and there are three zeroes between 110 and 200. The answer is 22000.
@lifehackdenn72415 жыл бұрын
Thank you so much! i am from poland!
@Shad0wDarkNess10 жыл бұрын
Absolutely fantastic!
@Theveryevilturtle10 жыл бұрын
So helpful thanks! Since I don't know my times tables (I'm really bad at math) this has really helped! Except my math teacher got mad at me when we did a test the other day and I used a method that he didn't know :/
@JaredEmberton10 жыл бұрын
So going to use this next time I have to multiply big numbers
@mitchb60687 жыл бұрын
Our teacher wants us to learn this, this is pretty easy now:)
@fwblxck6 жыл бұрын
so cool am gonna master this now
@billhart381410 жыл бұрын
This is in fact a method taught to a school girl in China. She taught it to a guy called Akahad who made a video showing the technique and uploaded it to MetaCafe on Nov 16th 2006. The method only works easily for numbers with small digits, for which the original poster was criticised. However he claimed it was not intended to be an actually efficient method, but only "meant to be a little trick to show to friends and kids who hate maths". Either way, the video was so popular it made $2000 in 4 days. It is said that the school teacher who introduced it did so to get kids interested in maths. The criss-cross pattern was used because it reminded the school children of the stools they sat on. It is absolutely not the Vedic method, definitely not Mayan and quite probably not Japanese. It does not appear to be a traditional Chinese method.
@apolinarcisneros27849 жыл бұрын
That's nice.....thank you for sharing it. You have a great day.