How to Multiply Numbers Lightning Fast like Shakuntala Devi (Mental Maths #4)

[@mathOgenius]

I hope You enjoyed :)

[@aswasara614]

Yes sir

[@mehaknisa4993]

Absolutely sir

[@actxion8884]

Thank you

[@Araphel8942]

Oh we injoyed it. :)))

[@pokunigeria1987]

Where r u from

[@rogersepeda]

I needed this guy to be my math tutor , this information is superb.

[@abhi_anand7061]

That's why Most of Indian are math genious

[@peterbrown2882]

@@abhi_anand7061 Sorry to say this, but I am much faster than this tutor.

[@antonyvarghese2432]

@@peterbrown2882you are luang

[@princessnandi9108]

To be honest, I really don't depend on school for Math anymore, I depend on your videos, because they make me understand better.

[@rezaulhaque2633]

❤❤

[@DowneyLi]

true

[@artcraftwithdhanuandminnu2962]

True

[@bibbs4150]

Ok this is genuinely the best advice for mental multiplication that I’ve ever seen. I do something similar naturally so this method just makes sense and has really helped me. Thank you!

[@mathOgenius]

glad to hear that !

[@hawaibambijenkhumancha2854]

@@mathOgenius would you tell me about 18 square

[@ilikecars2025]

Bruh

[@hiroshitakana433]

@@ilikecars2025 Wat?

[@MuhammhiadAaqil]

The best video for mental maths

[@shadowwarriors9593]

I am little afraid of maths but watching your video is really magical as well as logical

[@chasebeckett7063]

True

[@LongNoss]

Math

[@religiousmilk8612]

@@LongNoss That's what it's called in the UK I think

[@malaysarker6721]

Nothing to be afraid of maths !!

[@classroom3223]

😂

[@jagdishkarande474]

I’m compelled to tell viewers how my son learned the tables after coming home from school. I wrote tables of 1-10. I told him not to memorize because that would have burdened him but only read it daily. After a number of days the tables embedded in his mind. Upon asking any 2 digits he would give the correct answer. I then went from 11 to 20. At 44 now, he can answer multiplication of any numbers on that table. The viewers, their kids or grandchildren may benefit and wouldn’t burden or stress themselves. Reading is easier than memorizing. However reading again and again and again automatically gets embedded.

[@Anushka17127]

You're such a great and patient teacher. Thank you so much for all your hard work and for these videos. As a grown up, I realised I'm pretty awful at Mental Maths. I hated Maths at school. Now I'm brushing up with your help :)

[@kavitaadhikari3350]

I am not the best in maths but because of you I can see big improvement.... thank you

[@pushkarkumar1318]

यह ट्रिक हमको बहुत अच्छा लगा। यह ट्रिक से कितना भी बड़ा संख्या हो उसको आसानी से सॉल्व कर सकते हैं। आपका बहुत-बहुत धन्यवाद हम को इतना अच्छा ट्रिक सिखाने के लिए।

[@jimtamim1708]

This basic math calculation techniques that you teach us is really useful for our life. We use + - ×÷ almost everyday. Thanks for sharing your knowledge with us. May your life always blessed.

[@samhanson_68]

I played your game and i enjoyed it when i was able to practice what i learned, but lots of times there were new things that i didn't learn yet so it kinda put me down. I hope that you can develop it, like making sections for each lesson, or category. Thanks for your amazing videos and for the game., You have my respect. 🖤🖤

[@mythicalmystery66]

props to this guy. I cannot see a single piece of paper in his room, he's a superhuman

[@subalakshmisankar6381]

Very impressive I can see here the beauty of relationships between numbers. This is full of fast thinking and creativity

[@halfdemon1473]

I can flex in front of my maths sir now 😂

[@Mathematics19373]

Same

[@dikshitadeshmukh2797]

Also in front of friend

[@fezan173]

You'll take seconds but I could say 1 to 100 square in just a sec! You can ask any random square between 1-100

[@amlanpanda7619]

@@fezan173 how?

[@fezan173]

@@amlanpanda7619 I just memorized

[@mathewcris7861]

Im glad that i found this channel, your voice is very clear, its like magic thank you.. Filipino subscriber here 👋😁

[@beyondfantasy4972]

You are the most relaxing mathmagician I have ever listened to. Have a good day. :)

[@colourlessfool5107]

I found out that doing it the school taught way was faster on paper, but in your head, this was faster. Plus we are all used to the school way, cause we have been practicing math that way. If I practiced these methods, I would certainly be faster than a person with a calculator or using the school-taught way. Thank you for your great advice on math, I will continue to strive for my goals. Just started these methods a couple of days ago and I feel like I'm slowly becoming faster. Thank you.

[@catchyname58]

I agree with you, i think slowly i will calculate at decent speed atleast

[@nehav1091]

Exactly same feeling

[@aclemasultan1794]

Yeah but doing mental math and paper is faster that the school thaught way.

[@catzq]

Thank you so much! I want to improve my mental math's and you are the right person to go to! Thank you!

[@single_boys5783]

Love from space Never give up broo..💖

[@mathOgenius]

thanks for appreciating!

[@visheshkhedkar7015]

your. spain spelling is wrong bro

[@jinnycha3981]

❤

[@neoxyyofc]

Last crisss cross method i didnt understand😭😭 But u teached op....😄😄😄 best

[@んムムÐタモモ]

taught*

[@aurumisgreat]

im watching this at 2:30 in the morning so this is just flying over my head lol. ill probably watch it again tomorrow so my brain can actually process. it looks really cool and like something id understand

[@warkaibg]

Look at the awards behind him 🤯

[@Mst.Tasrin_Akter]

I am from Bangladesh🇧🇩... This video is so helpful... ❤

[@tanianoha2598]

Me too from Bangladesh 🇧🇩 . crisscross er bisoy ta hijibiji lagse .tmi ki jei dag gula dise oigula bujso?

[@Mst.Tasrin_Akter]

@@tanianoha2598 ha...bojhechii tu..akto valo kore arekbar vidoe ta dekho bojhte parbe...

[@randy5829]

I am enjoying your unique way of teaching mental math.

[@kimayapandya3513]

Thanks so much! You're so good at math, just look at how many trophy's he has.

[@nikozdev]

This is such a nice square calculation, I love it !

[@jeejirt2853]

You are really a math genius. You should receive respect and 10 trillion subscribers

[@tfg601]

Bro is 8 years old

[@readerwriterMH]

Okay, the teachers are learning something right here

[@rlpc2602]

This guy is underrated JEEEEZZZZZZZZZZZZZ

[@mathOgenius]

thanks 😁😁

[@Jarachupotter]

I’ve been a human calculator since I’ve watched u my friends ask me how I do it in. Y head so fast I will never tell them your my secret weapon :)

[@GraciousMkandawire-q2b]

Being one of running maths with this guy i always shine with math

[@u-fv9zrk]

why does this get recommended at 2am, and what makes me feel the urge to learn how to multiply when I desperately need to catch some sleep.

[@aadi9215]

You are really underrated bruh!!!!

[@mathOgenius]

thanks :) my uploading speed is slow thats why

[@inter-talented8040]

I am a student and this truly helped a lot, i hope he becomes a teacher

[@bankexamseverythinghere]

Luv u bro for explaining in English ❤️

[@Ganiskkar]

Bro Thank you for making videos in english😊. Your explanations are very easy to understand and are in simple english👌🏻

[@mathOgenius]

I am glad , Please share 😁😁

[@Ganiskkar]

Sure!

[@proplayhighlights16]

Thank's sir because i dont like math before because my head is hurting when my teachor told but when i watch your videos I love math now because your teaching is basic and effective not wasting time thank 😊😊😊😊

[@lingalaswathi3550]

you are a real MathOgenius MAN!!!!!!! Thank you

[@fcflow0]

you got yourself a new subscriber you are so amazing i am heading into highschool and i really need this thank you!

[@YonaTypeHand642]

I have another way to do a square of two digit numbers that start with 1. For example:- 12×12 So first we are going, to just multiply 2 with 12 which is 24, then we are going to plus 24 12× Which is 144. This doesn't seems the simplest but it is easier for me.

[@kandanat]

12x13, 2x3=6(unit place)and 12+3=15, so 156 is the answer. If two digit got in unit multiplication, there is a carry over.

[@YonaTypeHand642]

@@kandanat thanks

[@jimbobago]

Just to show there's so many ways to think through a problem, when I saw 46x42 I saw 44+2 times 44-2 and so I knew it was 44^2 - 2^2. 44 squared is 16x11x11 and there's a nice technique for multiplying by 11 to get to 1936 and then subtract 2^2 to get 1932.

[@abhishekananda5317]

Excellent sir....this channel needs to be shared and shared more! Haah...I did it right now 🙏

[@mathOgenius]

Thank you so much !

[@Happy_Hope10]

Best explanation It is proud to be know that you are an Indian I think that next Ramanujan will be you

[@jagdishkarande474]

My memorizations 60 years ago are still with me. I had memorized squares of 2-30 and cubes of 2 to 15. Some of your and others’ ifeas of multiplication are faster. e.g. 97 x 93

[@rohitkeelka3329]

Tomorrow is may mental math competition at state level these videos are very helpful

[@Jeon_kimin]

Am I the only one..... Struggling to understand....

[@Joseph-bs6hn]

Yes.

[@frankyboy1131]

​@@Joseph-bs6hn I don't think he is talking about a math issue, but about a language issue. All I understand is " tree ... tree .. tree ..." 😊

[@warkaibg]

​@@frankyboy1131 agreed. Im not hating him but the way he speaks is relaxing and it has low energy in it 😂😅

[@grmawit1664]

m3 too

[@gloriaaymargomezsanchez6449]

Yo toy con subtitulos por que no se ingles 🥲🥲

[@samthebam8664]

wow.. your voice is so satisfying 😂

[@legendaryaryan5531]

ASMRԅ( ͒ ۝ ͒ )ᕤ

[@huskyduck5483]

very well explained, i am in 7th grade and i take loads of help from your videos, i’m pretty sure i wouldn’t have known many of these methods if not for you, i have subscribed to your channel.

[@Legend_444-k5q]

bro Human mind is infinitely Gifted No words 💓 what a Human mind can do it's unimaginable 💓🔥

[@nathandaniel5451]

If you have your squares memorised then 42*46 is 44²-4, which is 1936-4=1932

[@marksonmoderator1980]

This Man is very good at math really fast

[@led1532]

Shakuntala devi pride of India🙏

[@harsh4321op]

Tommorow is my mental maths compittion.big thanks to this bro for this video.

[@100t-dl3ub]

I just discovered you and I already love u! Thank you

[@riskacendana8085]

Thanks man! this is helpful 1:35 2:27🔥&& square any 2-digit number

[@christophermartinez3034]

it is helpful for going back to School and for being learning a new way of Learning Basic math

[@watching4410]

1:30 - Squaring numbers Round and add subtract other number opposite of what you did to round then square that number and add to bigger number you multiplied 3:00 - 2 by 1 Multiplication by addition Take apart as hundreds, tens, ones and multiply left to right 4:00 - subtraction method of multiply Take apart as 100 tens ones and multiply each. Can round up but subtract missing and multiply parts 8:53 - factoring method 11:15 criss cross method

[@krishnamurthythondebavi9525]

Súuuuuuuuuuper trick. Thank you so much.

[@legitscaryturtle7379]

Thanks, i learned alot from you, i hope you will get millions of subscribers because your knowledge and explaining is top notch.

[@syedmohtashimali5638]

LOVE YOU BROTHER.WHAT AN AMAZING WAY YOU TEACH AND I REALLY ENJOYED IT.I HAVE A PRAY FOR YOU THAT ALLAH GIVE YOU MORE MORE SUCESS IN YOUR LIFE.LOVE AND SUB FOR YOU FROM PAKISTAN

[@titirchoudhury9755]

There is another easy method for squaring two digit no..... For example let's take 23 so here we need to do square of 2 which will be 4 and then we need to multiply 2 with both the no. So 2×2×3 and then again square of 3 which is 9.....so overall it will be 4 12 9...where the 1 will be added to 4 and the answer will be 529....and I think it's much easier and quicker... thankyou ❤️

[@bhatkrishnakishor]

Algebra behind squaring numbers a2 - b2 = (a-b) (a+b) If a2 is to be found, then a2 = (a-b) (a+b) + b2 That's it 🙂

[@bhatkrishnakishor]

Now, we can use the same to multiple two numbers A = a~b; B= a+b; Then A * B = (a~b) (a+b) = a2~b2 For example 29*31=30^2 - 1^2 29*31=900-1 29*31=899 😊

[@bhatkrishnakishor]

Cris Cross Method (10a+b)(10c+d)=100ac+10(ad+bc)+bd

[@bhatkrishnakishor]

Check your multiplication using navashesha (drop nine method).

[@RestInPieces1225]

There is a faster way of multiplying 2 digit numbers together and that is multiply vertically (like in the criss cross method) but not diagonally. Then after you do that then multiply diagonally and add.

[@jagdishkarande474]

46 x 42 Difference from 50 -4 an -8 32 last 2 digits Cross additions / subtraction 46-8=38 42-4•=38 38/2=19 Answer 1932

[@__-kj8cf]

Watching this during online classes is really benifited🙌 🤪 Well done keep it up

[@chasebeckett7063]

Bruh indian?

[@itzmechika145]

i alway get high grade in math because of him thank you so much

[@KnowledgeWallah-656]

You are my champion ship of maths

[@ThePiMan0903]

Nice video mathOgenius!

[@pink7818]

You already know your gonna learn something new with that accent 👁👄👁✨ this helped me sooo much tysm 🥺🤍🌸✨

[@jkj1459]

Those who can handle numbers in mind are the winners in the race of life

[@venkatpd3967]

this is the best from just liking maths to loving maths

[@SDMusic418]

your explanation is very good

[@bethelebere-duru4981]

this is really helpful for me cause I'm getting into harder math thanks man!!

[@iqbalalone40]

I wasn't aware but i was using factoring method for a long time. I learned this myself doing difficult operations.

[@CallMeXofer01]

Sir just a suggestion I would love to give right now: while multiphying my 5 we can just half the number and add a zero. For eg: 42 X 5 = 210 same as half of 42(ie 21) and a zero another one 52 X 5 = 260

[@sleepypie7968]

damn boi,thats too cool! Thanks

[@xalkoonx]

With Unary Numeral we can do like this 41*5 = 205 how to make it simple, half 41 is 20.5, remove the dot it will be 205 another example: 53*5 = 265 half 53 is 26.5 remove the dot it will be 265

[@sleepypie7968]

@@xalkoonx Thanks you!

[@GODBEASTFOOTBALLEDITZ]

Just understood it . Wow! Thanks , very helpful and engaging maths !

[@emmanuelkoech6735]

It's really magical to practice your tricks at home

[@saleemhesham8040]

Never give Up man I love your videos

[@MarkDarrenTangalin-js7cd]

I'm at grade 5 and I be honor student because of this man thank you

[@namesash-indianboi858]

You've just received a new supporter 🍿😉

[@tffbwd1]

Thank you so much I learned another way but I just couldn’t do it in my head, but I was easily able to do it with your method. Thank you :)

[@ClaudioButtazzo-dn6td]

The last multiplication of 3 digit 857●762 i began it from left to right and done before the hundreds 8●7, then add the *sum* of the the double cross multiplication of 8●6 + 5●7, then I add the SUM of the trouble multiplication of 8●2 + 5●6 + 7●7, then I began to multiplicate another time the double multiplication of 5●2 + 7●6 , and at least I multiplication the UNITS digit of 2●7 and add it .

[@nammalwarthiruvengadam2925]

Sorry. I have given wrong answer in the above comment. Here a new calculation. 857*765 = 6375//1800//105 = 655605

[@liza.1888]

I was taught the old school way so automatically do it fast and it seems easier for me but with this new method it just makes it a lot faster! Thank you…

[@hideandsee5445]

This is a good learnin video! Im a 11 yr old in 6th grade improving at math because fo u, keep the good work, 6:17

[@alakhedlamini9645]

I THANK THIS MAN SO MUCH

[@NengiJoyceAllagoa]

You are one of the best thanks for giving us your time

[@shadow-pq8jj]

This is superbb💯 I even can't find it in Vedic math

[@LuckyvillageLife]

Naamaste Namaskaram Guruji Jay hInd Jay Bolenath Jay Bharat 🇮🇳🇮🇳 🙏🕉 Swami Vivekanda once Said....

[@AnthonyPapaso]

Just started joining this guy .And it's really helping me thank you so much

[@mihirgogate1083]

Thanks very much bhaiyaa

[@BaoHoaLogo]

I like this video, thank you so much!

[@dibyajitchakraborty3018]

You are truely awesome man. Big and big hearts

[@Trending-Shorts2309]

It helped me in my exam sir

[@happydoge9010]

we can use 10 even in 19square by doing 19 10 x19 AS x 28 = 280 + 9square which is 361 ......easy

[@aclemasultan1794]

Yeah but rounding 19 into 20 and down 19 to 18 is much easier to calculate.

[@kundamwewa1909]

Great math skills keep it up 💪💪

[@Mozzel.]

All I can say i you’re a god.

[@BroNotBacon]

You know what, I trust him more than my teacher

[@Sakthivel-24usa]

Bro ur are really super good , and ur english is also good do much more content continuously u will reach great heights and subscribers.HEARTY WISHES♥️♥️♥️. NEVER GIVE UP!👊😎

[@mathOgenius]

thanks !

[@shwetamahnot8721]

Thanks very easy to understand 😊

[@mathOgenius]

glad :)

[@Nao20244]

This type of videos deserves the most likes