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

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  • เผยแพร่เมื่อ 21 พ.ย. 2024
  • In This Video we will learn how to multiply numbers faster in your head using left to right method and various techniques(addition method,subtraction method,factoring method) and also will learn the legendary criss-cross method.
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ความคิดเห็น • 738

  • @mathOgenius
    @mathOgenius  3 ปีที่แล้ว +552

    I hope You enjoyed :)

  • @rogersepeda
    @rogersepeda ปีที่แล้ว +170

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

    • @abhi_anand7061
      @abhi_anand7061 ปีที่แล้ว +11

      That's why Most of Indian are math genious

    • @peterbrown2882
      @peterbrown2882 3 หลายเดือนก่อน +1

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

    • @antonyvarghese2432
      @antonyvarghese2432 หลายเดือนก่อน

      @@peterbrown2882you are luang

  • @princessnandi9108
    @princessnandi9108 ปีที่แล้ว +103

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

  • @shadowwarriors9593
    @shadowwarriors9593 3 ปีที่แล้ว +336

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

  • @bibbs4150
    @bibbs4150 3 ปีที่แล้ว +227

    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!

  • @Anushka17127
    @Anushka17127 ปีที่แล้ว +13

    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
    @kavitaadhikari3350 ปีที่แล้ว +9

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

  • @pushkarkumar1318
    @pushkarkumar1318 2 ปีที่แล้ว +1

    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।

  • @jagdishkarande474
    @jagdishkarande474 ปีที่แล้ว +30

    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.

  • @jimtamim1708
    @jimtamim1708 2 ปีที่แล้ว +34

    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.

  • @subalakshmisankar6381
    @subalakshmisankar6381 4 หลายเดือนก่อน +2

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

  • @mythicalmystery66
    @mythicalmystery66 4 หลายเดือนก่อน +2

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

  • @samhanson_68
    @samhanson_68 ปีที่แล้ว +12

    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. 🖤🖤

  • @mathewcris7861
    @mathewcris7861 2 ปีที่แล้ว +17

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

  • @colourlessfool5107
    @colourlessfool5107 2 ปีที่แล้ว +20

    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
      @catchyname58 2 ปีที่แล้ว

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

    • @nehav1091
      @nehav1091 2 ปีที่แล้ว

      Exactly same feeling

    • @aclemasultan1794
      @aclemasultan1794 ปีที่แล้ว +1

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

  • @halfdemon1473
    @halfdemon1473 2 ปีที่แล้ว +287

    I can flex in front of my maths sir now 😂

    • @Mathematics19373
      @Mathematics19373 ปีที่แล้ว +3

      Same

    • @dikshitadeshmukh2797
      @dikshitadeshmukh2797 ปีที่แล้ว +13

      Also in front of friend

    • @fezan173
      @fezan173 ปีที่แล้ว +3

      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
      @amlanpanda7619 ปีที่แล้ว +2

      @@fezan173 how?

    • @fezan173
      @fezan173 ปีที่แล้ว +1

      @@amlanpanda7619 I just memorized

  • @catzq
    @catzq ปีที่แล้ว +6

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

  • @beyondfantasy4972
    @beyondfantasy4972 3 ปีที่แล้ว +57

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

  • @Jeon_kimin
    @Jeon_kimin 3 หลายเดือนก่อน +38

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

    • @Joseph-bs6hn
      @Joseph-bs6hn 2 หลายเดือนก่อน +4

      Yes.

    • @frankyboy1131
      @frankyboy1131 2 หลายเดือนก่อน

      ​@@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
      @warkaibg 2 หลายเดือนก่อน +1

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

    • @grmawit1664
      @grmawit1664 หลายเดือนก่อน

      m3 too

    • @gloriaaymargomezsanchez6449
      @gloriaaymargomezsanchez6449 หลายเดือนก่อน +1

      Yo toy con subtitulos por que no se ingles 🥲🥲

  • @aurumisgreat
    @aurumisgreat 2 ปีที่แล้ว +10

    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

  • @randy5829
    @randy5829 ปีที่แล้ว +2

    I am enjoying your unique way of teaching mental math.

  • @Mst.Tasrin_Akter
    @Mst.Tasrin_Akter 7 หลายเดือนก่อน +2

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

    • @tanianoha2598
      @tanianoha2598 3 หลายเดือนก่อน

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

    • @Mst.Tasrin_Akter
      @Mst.Tasrin_Akter 3 หลายเดือนก่อน

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

  • @nikozdev
    @nikozdev ปีที่แล้ว +5

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

  • @inter-talented8040
    @inter-talented8040 6 หลายเดือนก่อน

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

  • @kimayapandya3513
    @kimayapandya3513 ปีที่แล้ว +2

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

  • @GraciousMkandawire-q2b
    @GraciousMkandawire-q2b 2 หลายเดือนก่อน

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

  • @neoxyyofc
    @neoxyyofc 2 ปีที่แล้ว +5

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

  • @warkaibg
    @warkaibg 2 หลายเดือนก่อน +4

    Look at the awards behind him 🤯

  • @proplayhighlights16
    @proplayhighlights16 2 ปีที่แล้ว +4

    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 😊😊😊😊

  • @readerwriterMH
    @readerwriterMH ปีที่แล้ว +4

    Okay, the teachers are learning something right here

  • @jeejirt2853
    @jeejirt2853 ปีที่แล้ว +4

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

    • @tfg601
      @tfg601 6 หลายเดือนก่อน

      Bro is 8 years old

  • @lingalaswathi3550
    @lingalaswathi3550 3 ปีที่แล้ว +20

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

  • @single_boys5783
    @single_boys5783 3 ปีที่แล้ว +65

    Love from space Never give up broo..💖

  • @fcflow0
    @fcflow0 10 หลายเดือนก่อน +2

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

  • @Jarachupotter
    @Jarachupotter 9 หลายเดือนก่อน +1

    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 :)

  • @bankexamseverythinghere
    @bankexamseverythinghere 3 ปีที่แล้ว +41

    Luv u bro for explaining in English ❤️

  • @100t-dl3ub
    @100t-dl3ub ปีที่แล้ว +1

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

  • @rohitkeelka3329
    @rohitkeelka3329 ปีที่แล้ว +1

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

  • @Ganiskkar
    @Ganiskkar 3 ปีที่แล้ว +34

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

    • @mathOgenius
      @mathOgenius  3 ปีที่แล้ว +5

      I am glad , Please share 😁😁

    • @Ganiskkar
      @Ganiskkar 3 ปีที่แล้ว

      Sure!

  • @Happy_Hope10
    @Happy_Hope10 ปีที่แล้ว

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

  • @rlpc2602
    @rlpc2602 3 ปีที่แล้ว +17

    This guy is underrated
    JEEEEZZZZZZZZZZZZZ

  • @Legend_444-k5q
    @Legend_444-k5q 2 ปีที่แล้ว +3

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

  • @aadi9215
    @aadi9215 3 ปีที่แล้ว +34

    You are really underrated bruh!!!!

    • @mathOgenius
      @mathOgenius  3 ปีที่แล้ว +8

      thanks :) my uploading speed is slow thats why

  • @harsh4321op
    @harsh4321op ปีที่แล้ว

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

  • @abhishekananda5317
    @abhishekananda5317 3 ปีที่แล้ว +9

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

    • @mathOgenius
      @mathOgenius  3 ปีที่แล้ว +4

      Thank you so much !

  • @christophermartinez3034
    @christophermartinez3034 ปีที่แล้ว

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

  • @huskyduck5483
    @huskyduck5483 ปีที่แล้ว +3

    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.

  • @marksonmoderator1980
    @marksonmoderator1980 ปีที่แล้ว

    This Man is very good at math really fast

  • @legitscaryturtle7379
    @legitscaryturtle7379 2 ปีที่แล้ว +8

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

  • @u-fv9zrk
    @u-fv9zrk 11 หลายเดือนก่อน +1

    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.

  • @__-kj8cf
    @__-kj8cf 3 ปีที่แล้ว +14

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

  • @pink7818
    @pink7818 3 ปีที่แล้ว +2

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

  • @syedmohtashimali5638
    @syedmohtashimali5638 3 ปีที่แล้ว +23

    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

  • @venkatpd3967
    @venkatpd3967 2 ปีที่แล้ว +2

    this is the best from just liking maths to loving maths

  • @tffbwd1
    @tffbwd1 2 ปีที่แล้ว +2

    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 :)

  • @KnowledgeWallah-656
    @KnowledgeWallah-656 2 ปีที่แล้ว

    You are my champion ship of maths

  • @GODBEASTFOOTBALLEDITZ
    @GODBEASTFOOTBALLEDITZ 2 ปีที่แล้ว +4

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

  • @jagdishkarande474
    @jagdishkarande474 ปีที่แล้ว +1

    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

  • @SDMusic418
    @SDMusic418 2 ปีที่แล้ว +1

    your explanation is very good

  • @mihirgogate1083
    @mihirgogate1083 2 ปีที่แล้ว +2

    Thanks very much bhaiyaa

  • @iqbalalone40
    @iqbalalone40 2 ปีที่แล้ว +3

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

  • @emmanuelkoech6735
    @emmanuelkoech6735 2 ปีที่แล้ว +2

    It's really magical to practice your tricks at home

  • @bethelebere-duru4981
    @bethelebere-duru4981 ปีที่แล้ว

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

  • @riskacendana8085
    @riskacendana8085 ปีที่แล้ว +2

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

  • @krishnamurthythondebavi9525
    @krishnamurthythondebavi9525 3 ปีที่แล้ว +8

    Súuuuuuuuuuper trick. Thank you so much.

  • @samthebam8664
    @samthebam8664 3 ปีที่แล้ว +22

    wow.. your voice is so satisfying 😂

  • @AnthonyPapaso
    @AnthonyPapaso ปีที่แล้ว +2

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

  • @ThePiMan0903
    @ThePiMan0903 2 ปีที่แล้ว +1

    Nice video mathOgenius!

  • @watching4410
    @watching4410 6 หลายเดือนก่อน

    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

  • @alakhedlamini9645
    @alakhedlamini9645 3 ปีที่แล้ว +24

    I THANK THIS MAN SO MUCH

  • @YonaTypeHand642
    @YonaTypeHand642 ปีที่แล้ว +2

    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
      @kandanat ปีที่แล้ว +2

      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
      @YonaTypeHand642 ปีที่แล้ว

      @@kandanat thanks

  • @jkj1459
    @jkj1459 16 วันที่ผ่านมา

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

  • @saleemhesham8040
    @saleemhesham8040 3 ปีที่แล้ว +2

    Never give Up man I love your videos

  • @itzmechika145
    @itzmechika145 ปีที่แล้ว +1

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

  • @led1532
    @led1532 ปีที่แล้ว +1

    Shakuntala devi pride of India🙏

  • @shadow-pq8jj
    @shadow-pq8jj 2 ปีที่แล้ว +4

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

  • @NengiJoyceAllagoa
    @NengiJoyceAllagoa 5 หลายเดือนก่อน

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

  • @jimbobago
    @jimbobago 10 หลายเดือนก่อน

    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.

  • @liza.1888
    @liza.1888 ปีที่แล้ว +1

    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…

  • @namesash-indianboi858
    @namesash-indianboi858 2 ปีที่แล้ว +1

    You've just received a new supporter 🍿😉

  • @dibyajitchakraborty3018
    @dibyajitchakraborty3018 ปีที่แล้ว

    You are truely awesome man.
    Big and big hearts

  • @parthadas302
    @parthadas302 4 หลายเดือนก่อน

    Tremendous bro ,love frm Navi Mumbai

  • @kundamwewa1909
    @kundamwewa1909 3 ปีที่แล้ว +15

    Great math skills keep it up 💪💪

  • @nathandaniel5451
    @nathandaniel5451 ปีที่แล้ว +2

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

  • @Trending-Shorts2309
    @Trending-Shorts2309 2 ปีที่แล้ว +1

    It helped me in my exam sir

  • @gbengaadeniyi8410
    @gbengaadeniyi8410 ปีที่แล้ว +1

    So new, so real.

  • @Nao20244
    @Nao20244 2 ปีที่แล้ว +1

    This type of videos deserves the most likes

  • @BaoHoaLogo
    @BaoHoaLogo 2 ปีที่แล้ว +5

    I like this video, thank you so much!

  • @MarkDarrenTangalin-js7cd
    @MarkDarrenTangalin-js7cd ปีที่แล้ว

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

  • @Sakthivel-24usa
    @Sakthivel-24usa 3 ปีที่แล้ว +9

    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!👊😎

  • @BlackEnigma908
    @BlackEnigma908 ปีที่แล้ว

    This guy is the GOAT!!!

  • @titirchoudhury9755
    @titirchoudhury9755 ปีที่แล้ว +4

    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 ❤️

  • @HKbros19457
    @HKbros19457 2 ปีที่แล้ว +1

    Thank you so much mathOgenius it helped me get improvement in maths thanks.

  • @BroNotBacon
    @BroNotBacon ปีที่แล้ว

    You know what, I trust him more than my teacher

  • @adimepf8688
    @adimepf8688 2 ปีที่แล้ว

    I get 0 every math test thanks to you I passed by pass mark

  • @theart7111
    @theart7111 ปีที่แล้ว

    Realy good content mate

  • @vanzseditz
    @vanzseditz 3 ปีที่แล้ว +2

    Thank u very much sir..I hope the app will come in ios also...🥺❤️❤️

  • @jagdishkarande474
    @jagdishkarande474 ปีที่แล้ว

    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

  • @shadowwarriors9593
    @shadowwarriors9593 3 ปีที่แล้ว +1

    I will always follow left to right

  • @hideandsee5445
    @hideandsee5445 ปีที่แล้ว

    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