How I learned to Calculate Extremely Fast

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  • Опубликовано: 14 окт 2020
  • Patreon: / mikeshake
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    Subscribe for new videos about building and testing powerful things ⚔️🖤⚒️
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Комментарии • 3,7 тыс.

  • @MikeShake
    @MikeShake  3 года назад +707

    Subscribe for new skills every week.
    Check out more skills: ruclips.net/user/MikeShake
    Instagram: instagram.com/mikeshaketv

  • @pasticcinideliziosi1259
    @pasticcinideliziosi1259 3 года назад +8066

    Math teacher: “in the test you can use your calculators”
    Me: *years of training, wasted*

  • @taehyungsrighteyebrow4709
    @taehyungsrighteyebrow4709 3 года назад +3307

    Everyone Gangsta until the teacher asks to show the whole process

    • @altafbobi2791
      @altafbobi2791 3 года назад +25

      Lol

    • @an1ketsharma
      @an1ketsharma 3 года назад +191

      "No marks for direct answers"
      :(

    • @sirinniya7484
      @sirinniya7484 3 года назад +15

      Yo army!

    • @tigerstripedsinger
      @tigerstripedsinger 3 года назад +40

      I mean all of those are perfectly fine ways of working out maths except maybe the line method

    • @pupa6053
      @pupa6053 3 года назад +12

      I like your Profile Photo🧒🏻

  • @EpicGameChangerr
    @EpicGameChangerr 2 года назад +204

    this guy actually made me watch something that was entertaining and educational at the same time. What a legend.

  • @creeperbeeper2905
    @creeperbeeper2905 Год назад +107

    I don't get why this isn't taught in school...

    • @Voynage
      @Voynage Месяц назад +3

      You know why? Because all of this is useless. The methods are not going to improve your mental math instead it's like a cheat code. And fun fact if you practice enough then you won't need tricks like this....

    • @ItzSwiftyBoy_Gaming
      @ItzSwiftyBoy_Gaming Месяц назад +3

      So that they can punish us more.

    • @shambles3765
      @shambles3765 Месяц назад +4

      ​@Voynage the first one is taught in school idk where u guys r stuck at and no its not going to make ur "mental math" worse and besides: the educational system couldn't give less of a fuck about your "mental math". It's bc they r stuck with using old methods and methods which are easier to read such as the first method

    • @BurgerKing445
      @BurgerKing445 6 дней назад

      I was taught the first one

  • @aniiiiket9
    @aniiiiket9 3 года назад +802

    Other really good techniques for improving calculations is
    1. Vedic maths ( half of the short tricks are actually derived from it)
    2. Abacus ( this needs a lot of practice but calculations become way more faster)

  • @parvathy6279
    @parvathy6279 3 года назад +1754

    The comment section : Indians are so good at maths
    Me , an Indian : 😑

    • @vidipsahoo4968
      @vidipsahoo4968 3 года назад +23

      L

    • @forhadrh
      @forhadrh 3 года назад +7

      xD

    • @forhadrh
      @forhadrh 3 года назад +8

      @DAMN SAM Indeed :)

    • @anubhavrana3088
      @anubhavrana3088 3 года назад +69

      Undoubtedly, I can calculate 2 digit numbers product in less than 20 seconds without calculator
      It's all about practice not to the place from where you belong

    • @SushilKumar-xt9ns
      @SushilKumar-xt9ns 3 года назад +6

      We not good but definitely become good

  • @shargo498
    @shargo498 Год назад +42

    Me who's been using these techniques without even realizing people have to learn it in the first place

  • @acidpop708
    @acidpop708 2 года назад +11

    Thank you so much! I just got into accelerated Math at my new school and I’m trying to prepare as much as I can, this really helped.

  • @TristanDefeuilletVang
    @TristanDefeuilletVang 3 года назад +4660

    Will keep my calculator but thanks bro 😅

  • @aleksandarantonijevic1626
    @aleksandarantonijevic1626 3 года назад +832

    Mike in 2030 after hacking NASA:
    "Everything is about practice"

  • @umamasalsabil6107
    @umamasalsabil6107 Год назад +8

    Hello Mike Shake ,
    It's really wonderful to come across such amazing videos which i kept searching for!! Plz do make videos for students who struggle with arithmetic. Understanding maths, arranging the solutions in head! Complex Word problems for aptitude tests something like this! I aspire this message of mine will reach to u, no cap!! 🙏

  • @nathandaniel5451
    @nathandaniel5451 Год назад +41

    I've been teaching myself how to do mental math for the last year.
    Here's how I approached 33x21. (You need to add 3*2, and 3*1, but since with both you are multiplying by 3 I find it faster to do 3(2+1), for something like 47*27 I would do 6*7, instead of 4*7 and add 2*7. It's a small trick but makes it slightly faster. The trick I used though was I did 33*20+33, so 660+33. You can use the second trick pretty much anytime one of the numbers ìs a multiple of 10±2, like 82*76, 80*76+152 is easier for me.
    My learning progression:
    -Learned the first 100 square numbers (practed calculating them instead of rote memory to improve multiple skills)
    Tried to do 2 digit multiplication and realised I didn't know my times-tables. So I learned and practiced my times-tables up to 9x9.
    Then every day on my way to work I would practice 2 digit multiplication by generating lists of random numbers from 11-99.
    Things I wanna do: learn times tables up to 25*25 (or at least up to 18*18 because one of the previous mentioned tips doesn't work for something like 77*79 if I can't instantly do 16*7.
    I want to be able to quickly calculate squares of 3 digit numbers. I know a lot of shortcuts and quicker ways of doing so but I need to practice it. Ex: 121²=10000+200(21)+21²=14641, with similar rules for 200-999.
    I also wanna practice 2 digit multiplication using difference of squares. Like 46*86=66²-20²=4356-400-3956 (super easy if you can recall 66² within a second)

    • @ahsanchy5217
      @ahsanchy5217 9 месяцев назад +1

      Bro u broke the comment section and dropped us in great trouble. 💀

    • @nathandaniel5451
      @nathandaniel5451 9 месяцев назад

      @@ahsanchy5217 wait what? xD

    • @devb.9250
      @devb.9250 9 месяцев назад

      @natahandaiel can u pls explain ur 1st method

    • @nathandaniel5451
      @nathandaniel5451 9 месяцев назад +2

      ​@@devb.9250 oh, it's just a very small mental shortcut. you gain more of these shortcuts the more you practice.
      take 27*47, you have you add 2(7) and 4(7) right? 2(7) = 14, 4(7) = 28.
      then add them together.
      14+28 = 42
      the shortcut is to recognise 2(7) + 4(7) = 6(7), which to me is practically instantaneous. so I just do
      6(7) = 42, which is 1 operation instead of 3.
      in full.
      27*47
      6(7) = 42,
      42*10 = 420 (this step is done practically instantly)
      (My literal internal monologue is: "6, 7, 420" )
      20(40) = 800
      800 + 420 = 1220
      (My literal internal monologue: "2, 4, 800... 800 and 420 is 1220")
      7*7 = 49
      27*47 = 1220 + 49
      (Internal monologue: 1220 plus 49, 1269
      (although with 27*47, if you know your square numbers really really well then it's waaaay easier to see 27*47 as just 38^2-100 which is 1369-100=1269)

    • @CMPXL
      @CMPXL 3 месяца назад

      How is it going?

  • @harshvardhanmankotia6492
    @harshvardhanmankotia6492 3 года назад +2808

    Indians: Laugh in years of school mental calculation training.

    • @muhammadwaleedarshad4444
      @muhammadwaleedarshad4444 3 года назад +40

      exactly

    • @rajarshiroy8794
      @rajarshiroy8794 3 года назад +136

      Seriously bro😂😂
      In india we are made to learn from class 4-6😂

    • @nihalh6482
      @nihalh6482 3 года назад +111

      @@rajarshiroy8794 really? mental arithmetic?
      I wasn't taught, but it is considered a cool skill like speed cubing among peer groups...

    • @asterisque9252
      @asterisque9252 3 года назад +66

      Not in syllabus, most poeple do that by interest

    • @harshvardhanverma1246
      @harshvardhanverma1246 3 года назад +6

      Harshvardhan?😂

  • @riverbird8112
    @riverbird8112 3 года назад +235

    Me: Getting old sucks
    But this guy,....
    Him: getting old, learned everything

    • @RealGreenrh
      @RealGreenrh 3 года назад +1

      @x moschino He/she/they means that everyone gets older.

    • @blackwarrior823
      @blackwarrior823 Год назад

      Meanwhile being Asian! 😐

  • @andrejlykov6408
    @andrejlykov6408 2 года назад +26

    Great video, was glad to find your channel! Addition, calendar dates and 2*2 are pretty easy to master. But 3*3 and more can be tricky, because you need strong visualization skills to keep the digits in your mind.

  • @Fatmasacc
    @Fatmasacc Год назад +1

    Thank you, this was so helpful

  • @vitanimat0r
    @vitanimat0r 3 года назад +1589

    Really underrated for being such a nice guy and literally teaching us impressive and hard stuff

    • @mattiadossena839
      @mattiadossena839 3 года назад +19

      And he Is italian so he has to speak a different lenguage and to write in a different lenguage

    • @luke_s2082
      @luke_s2082 3 года назад +2

      True

    • @youngvic814
      @youngvic814 3 года назад +6

      Bruh he just started posting good videos 3 months ago bruh 😂😂 he’s growing fast 💨

    • @vitanimat0r
      @vitanimat0r 3 года назад

      @@youngvic814 He deserves it

    • @desktopnotfound4559
      @desktopnotfound4559 3 года назад +1

      ruclips.net/video/pep618yXHVE/видео.html

  • @David-sw6le
    @David-sw6le 3 года назад +908

    most underrated youtuber out here

    • @lightd2471
      @lightd2471 3 года назад +19

      Not really tho, he almost has 350k subs. Sure, he deserves more but is not underrated.

    • @ricardomilos2360
      @ricardomilos2360 3 года назад +17

      @@lightd2471 i personally think he is.
      His editing is really clean and his contents are really fascinating

    • @ravijangrax
      @ravijangrax 3 года назад +3

      Get ready for A Heart From The creater for SURE 😎

    • @lightd2471
      @lightd2471 3 года назад +2

      @@ricardomilos2360 yes, i agree that id what i said by "he deserves more"

    • @kadeejafaith4413
      @kadeejafaith4413 3 года назад

      I am from the Caribbean and I know him

  • @bella-nina
    @bella-nina 2 года назад

    woah thanks for being straight to the point and helping!

  • @user-eg6dx5rd3u
    @user-eg6dx5rd3u 3 месяца назад

    We all do have calculators in our pockets, but for me, a school going student, this was amazing! You, sir, are a life saver! Thank you!

  • @simplepotato3687
    @simplepotato3687 3 года назад +472

    *Random RUclipsr talking bout maths*
    Indians : whomst has awakened the ancient one.

  • @pizzawonderer5024
    @pizzawonderer5024 3 года назад +347

    Literally every high school student: "Write that down, write that down!"

    • @kaidou_5604
      @kaidou_5604 3 года назад

      Fax

    • @Meandino804
      @Meandino804 2 года назад +1

      Yea.. I just had a 1 hour talk with my mom and sibling and I think they do deserve the respect they can get if I studied well so here I m!

    • @Name-nx6ef
      @Name-nx6ef 2 года назад

      Yup😳

    • @michaelsfather3664
      @michaelsfather3664 2 года назад

      This is basic maths i knew when i was 9 honestly

    • @lenalenasabri
      @lenalenasabri 2 года назад +1

      i'm in 4th grade and panicking here my dude

  • @arushsingh9868
    @arushsingh9868 2 года назад +1

    thank you very much it helps me a lot

  • @lwingyi8576
    @lwingyi8576 2 года назад

    This is one of the most BRILLIANT video i've seen on today...thanks bro

  • @nikhilnaik4188
    @nikhilnaik4188 3 года назад +1960

    It's called 'vedic maths' and already being taught in indian schools
    Appreciate your efforts 👍🏻🙏🏻

    • @siddharthdoshi4858
      @siddharthdoshi4858 3 года назад +71

      Yeah, was literally searching for this comment

    • @siddharthdoshi4858
      @siddharthdoshi4858 3 года назад +233

      And it’s not taught in Indian schools tho

    • @nikhilnaik4188
      @nikhilnaik4188 3 года назад +94

      @@siddharthdoshi4858 taught in many schools and also taught in our school in extra classes your school don't teach I suppose

    • @siddharthdoshi4858
      @siddharthdoshi4858 3 года назад +75

      @@nikhilnaik4188 oh! Nice to know it's taught in your school we weren't fortunate enough but I'm going to study it anyways

    • @t4maraa
      @t4maraa 3 года назад +41

      i am moving to india

  • @jeanmathieu857
    @jeanmathieu857 3 года назад +232

    You should get a world record reward about the most underrated youtuber ever

    • @H8ssan
      @H8ssan 3 года назад +1

      Absolutely true

    • @Masteraffan
      @Masteraffan 3 года назад +1

      Seriously yes

    • @mistadude
      @mistadude 3 года назад +1

      I'm surprised he hasn't reached 1M yet

  • @apathly
    @apathly 5 месяцев назад

    thank so so much, you really helped me for real

  • @MrMikkyn
    @MrMikkyn Год назад

    Thanks for the advice. I usually listen to Italians for cooking videos, and this reminds me of those cooking videos even though its math.

  • @ulyxsigma
    @ulyxsigma 3 года назад +136

    *When you learned math more than your teacher in 5 minutes*

  • @basilboni6253
    @basilboni6253 3 года назад +316

    Mike Is
    Funny
    Educational
    And His videos has the best quality
    Why doesnt he have more subs?

    • @basilboni6253
      @basilboni6253 3 года назад

      @@beastybluebird3935 what?

    • @cobalt2506
      @cobalt2506 3 года назад +5

      @original noon you may be right but I also think that his videos being short attracts people as they don’t have to watch a longer video that might get boring

    • @yashkrishnatery9082
      @yashkrishnatery9082 3 года назад

      Because of those 76% of his viewer who didn't sub him yet
      involving me too

    • @toonvanderauwera4926
      @toonvanderauwera4926 3 года назад +1

      Or because this is a rip of from someone's content

  • @aaryanchoudhary8542
    @aaryanchoudhary8542 2 года назад

    thanks for video was very helpful for me

  • @KAIJUKING123
    @KAIJUKING123 2 года назад +2

    2:11 that was the first multiplication method I learned in 3rd grade from a 6th grader it’s my favorite multiplication method to use you just need to make a squat box and then make the lines in it

  • @abdalla5078
    @abdalla5078 3 года назад +272

    At this point I don't know what he is trying to become, this guy is breaking records

    • @noahz3429
      @noahz3429 2 года назад +5

      a god that's his goal

    • @S3NS_
      @S3NS_ Год назад +4

      If he can do it, I can too

  • @whothis921
    @whothis921 3 года назад +332

    Everything are throwing jokes,
    but no one
    like
    literally no one
    is talking about this guy's editing skills!
    Edit:
    Omg thanks for those immediate 👍 likeess

    • @awakened_deep
      @awakened_deep 3 года назад +2

      Yup

    • @JackCalvinRoss
      @JackCalvinRoss 3 года назад +4

      Literally one of the biggest reasons I started wanting to learn. Blows my mind every video.

    • @whothis921
      @whothis921 3 года назад +1

      @@JackCalvinRoss yup

    • @hastagvfx7201
      @hastagvfx7201 3 года назад

      check out mine too ya know

    • @satishchaudhary7978
      @satishchaudhary7978 3 года назад

      Where's the heart bro 😂😂😂😂😂

  • @FreshAirThe
    @FreshAirThe Месяц назад

    Fasinating for sure !!

  • @ohkarsworld1500
    @ohkarsworld1500 3 года назад

    Thanks for this video.
    I understand what u explained

  • @Loo_Kah
    @Loo_Kah 3 года назад +21

    I remember, a few months ago, when I searched Mike Shake on youtube there were only milkshake videos lol

  • @pranavgupta5747
    @pranavgupta5747 3 года назад +187

    *That was the smoothest sponsorship transition ever.*

    • @grulightyear8095
      @grulightyear8095 3 года назад

      Ong bruh

    • @DaJS10
      @DaJS10 3 года назад +1

      @@grulightyear8095 Oh No Gaud bruh

    • @totallynotme8153
      @totallynotme8153 3 года назад +1

      Dude go to Thoughty2 and you’ll see smooth.

    • @UditplayzWHAT
      @UditplayzWHAT 2 года назад

      andddd my youtube vanced skipped that

  • @Volluu11
    @Volluu11 2 месяца назад

    this helped me so much, thx

  • @mojtabaalfaki9735
    @mojtabaalfaki9735 Год назад

    thank you so much this helped so much

  • @abhishekrathod9915
    @abhishekrathod9915 3 года назад +624

    no one:
    That one Indian guy who suffered his entire life becuz of Indian school system : i know how to multiply a 100 digit number by 100 digit number by just calculating in my brain......

    • @boyjuice3225
      @boyjuice3225 3 года назад +17

      Relatable

    • @flochforster8333
      @flochforster8333 3 года назад +12

      Relatable

    • @kevilsolanki645
      @kevilsolanki645 3 года назад +38

      Broo! That's too much about us. We not that smart. Just 5-7students are good at maths in an average class. But after getting a bit higher education the no. Increases a little bit. This is just based upon my vicinity and experience. I may be wrong

    • @nabeelahmed4862
      @nabeelahmed4862 3 года назад +5

      @@kevilsolanki645 I can relate to you

    • @barbiesshorts4904
      @barbiesshorts4904 3 года назад +3

      @@kevilsolanki645 lol dude, you cant even write properly....

  • @claymusic2205
    @claymusic2205 3 года назад +83

    I thought the title was "I learned calculus really fast." There you go. Your next video.

    • @integralboi2900
      @integralboi2900 3 года назад +2

      Wolframalpha

    • @jesusisreal2604
      @jesusisreal2604 3 года назад

      Dear Lord Jesus, I know that I am a sinner, and I ask for Your forgiveness. I believe You died for my sins and rose from the dead. I turn from my sins and invite You to come into my heart and life. I repent of my sins. I will worship you all the days of my life.I want to trust and follow You as my Lord and Savior.I receive it and Believe it in
      Jesus Powerful Name, AMEN❗️.

    • @stealth1384
      @stealth1384 2 года назад

      @@jesusisreal2604 no one asked

  • @ahmaddashti7376
    @ahmaddashti7376 2 года назад

    Thank you very much for this video...........It was good
    I like this your slove ....You Have a powerful brain ....

  • @NetanelColish
    @NetanelColish 2 года назад +1

    This is amazing ty!

  • @ndy3882
    @ndy3882 3 года назад +191

    Who else think this guy deserves way more subscribers

  • @harshit3964
    @harshit3964 3 года назад +10

    Watching u for the first time... Can't belive. How a single human has all these qualities..?! ,.. World's most talented human being!!

  • @sarangavadiya7087
    @sarangavadiya7087 2 года назад +3

    I use this method before showing this video it's help me lot in my JEE exam

  • @etueicg8044
    @etueicg8044 Год назад +11

    Thx i need this for a math test

  • @taehyungsrighteyebrow4709
    @taehyungsrighteyebrow4709 3 года назад +86

    *When teacher asks to show the multiplication process*
    Me: *intense sweating*

    • @asgardianweeb9776
      @asgardianweeb9776 3 года назад

      @@jayapudi4651 Oh god I don't amaze now if and when I find an army in the comment section of almost every vid I see..... Borahae 💜

    • @asteriskk551
      @asteriskk551 3 года назад

      I'll be the coolest guy😎

    • @omupadhyay9222
      @omupadhyay9222 3 года назад

      @@asgardianweeb9776 asgardian, do you like Thor too?

    • @asgardianweeb9776
      @asgardianweeb9776 3 года назад

      @@omupadhyay9222 Like thor .... I think that's an understatement ... I m a literal nerd when it comes to Thor or even Marvel in general.

    • @omupadhyay9222
      @omupadhyay9222 3 года назад

      @@asgardianweeb9776 do you use insta

  • @inosukehashibira8713
    @inosukehashibira8713 3 года назад +13

    Indian science students be like:
    Hold my tea.

  • @shikhasahu9493
    @shikhasahu9493 2 года назад

    Thank you for this video

  • @vicumfernando6659
    @vicumfernando6659 2 года назад

    Love it man♥️!!!

  • @LNM101
    @LNM101 3 года назад +39

    2040: learning the first 1000000000 digits of pi in 5 seconds with an easy method!

    • @angiex_x
      @angiex_x 3 года назад +1

      3000: bringing Einstein back from dead to help us communicate with the aliens in numbers

    • @sharbinislam9468
      @sharbinislam9468 3 года назад

      Learning this is eazy but telling?

    • @sharbinislam9468
      @sharbinislam9468 3 года назад

      Its really eaze but telling is not impossible but extreme

  • @emilzamudio1972
    @emilzamudio1972 3 года назад +17

    Can y'all appreciate that his always expanding his MENTAL, PHYSICAL, AND HOLISTIC ABILITIES???? Like wtf???? 💙💙💙 So proud of this guy.

  • @Karltv1
    @Karltv1 Год назад

    This was help me so muchhh!!

  • @user-zl5bz2ed2t
    @user-zl5bz2ed2t Год назад +1

    wow this tricks actually very good,good video like always!

  • @letsdomath1750
    @letsdomath1750 3 года назад +25

    1:50 This is just an application of the FOIL method taught in algebra classes, or a double application of the distributive law of multiplication over addition when you multiply two binomials together. For instance, 78x94=(70+8)(90+4).

    • @seemeok1404
      @seemeok1404 2 года назад +1

      What about 26•26

    • @afj810
      @afj810 2 года назад +1

      @@seemeok1404 20 squared plus 6 squared plus 2 times 20 times 6 is 676

  • @avinashramphal735
    @avinashramphal735 3 года назад +10

    For the rest of the year I would be in online classes so this is going to be extremely helpful.Thank you so much Mike.👍❤

  • @rafinchowdhury_
    @rafinchowdhury_ 10 месяцев назад

    Love you bro.....every student and educated people must subscribe and watch your videos.😊

  • @Chess_master_007
    @Chess_master_007 Год назад

    He is so helpful and a nice guy ❤🎉

  • @toxiclogic6885
    @toxiclogic6885 3 года назад +85

    Who else thinks this guy deserves at least a million subs

  • @thebookreviewmania4960
    @thebookreviewmania4960 3 года назад +1

    THATS AMAZINGGG I LEARNT IT BY YOUR WAY!!!!

  • @awesome_aye
    @awesome_aye Год назад +18

    Bro why doesn't school teach us stuff like this this is so helpful for timed tests

    • @Nahaintnkway
      @Nahaintnkway Год назад

      The Indian man on RUclips won’t make money then

  • @hamptoncalledmehisfriend6y383
    @hamptoncalledmehisfriend6y383 3 года назад +51

    mike shake: bad joke im sorry
    me: laughing my a** off

  • @KAMI_x666
    @KAMI_x666 3 года назад +14

    Who wants to be remembered by mike when he hits 1 million subscribers? 😄

  • @srabanichattopadhyay1925
    @srabanichattopadhyay1925 3 года назад

    This really helped me thanks bro

  • @MoNa-vk6mq
    @MoNa-vk6mq 2 года назад

    Thanks you're really genius man 👏👏👏

  • @parrytheplatypusss
    @parrytheplatypusss 3 года назад +6

    Just what I needed
    You're amazing dude!!

  • @peachDelphinium
    @peachDelphinium 3 года назад +5

    your accent makes it so much better, keep up the good work!! im learning so much from you! ❤️

  • @programmerbase9737
    @programmerbase9737 2 года назад +5

    I'm good at maths until alphabets decide to get in

    • @TDS712
      @TDS712 22 часа назад

      You mean algebra?

  • @ProfQED
    @ProfQED 2 года назад

    I love you man!!!! that's awesome!

  • @Taigokumaru
    @Taigokumaru 3 года назад +19

    Mathematician here. I love your enthusiasm especially on this topic. It's hilariously amazing how you enjoyed the mult method at 0:25 considering it's exactly the way we multiply polynomials.
    If a=b=3, and c=2, d=1
    Then 33x21 has the form
    (10a+b)(10c+d)
    =100ac + 10(ad+bc) + bd
    Plug in the numbers, it's exactly as you did it ^_^
    At 2:39, instead of counting the crossings, multiply the number of lines going one way by the number of lines going the other way. 3 lines crossing 4 lines means 3x4=12 crossings in that part.
    3:28 try this: mentally do 48+34=82 to get the first two digits. Then 2+3=5 to get the last digit. 82 and 5 ----> 825
    If the 5 number had actually been higher than 9, the 10s digit would have carried over.
    4:06 not all numbers are divisible by 3. Some will have a remainder of 1 or 2.
    Here's a fun way to tell if it will divide evenly (by 3): Add up the individual digits. If the sum is divisible by 3, then so is your starting number! If the sum is too big for you to decide, repeat the rule for that sum. Your new sum will be smaller and easier to decide on. If sum2 is divisible by 3, then so is sum1 and therefore the starting number is as well!
    There are more than a few curious things to appreciate in mathematics when you reach a high enough skill level so as not to be bogged down by sheer arithmetic.

  • @divyanshadapa4607
    @divyanshadapa4607 3 года назад +6

    Can we just appreciate this guys editing? Hats off man

  • @teen_hub
    @teen_hub 2 года назад

    Thank bro it help Me a lot

  • @preetipushpkar624
    @preetipushpkar624 Год назад +62

    3:38 Being an Indian I want to share that we all discovered it in class 2nd 😂.
    We are practicing those questions like a piece of cake😎
    By the way, nice video👍🏻👍🏻
    Love from India🇮🇳 ❤️

    • @proffoctopus66yearsago22
      @proffoctopus66yearsago22 Год назад +16

      stop exaggerating sheesh

    • @royalfishman9790
      @royalfishman9790 Год назад +2

      I think everyone did? It’s just mental addition.. good job mastering it though!!

    • @YashaswiYadav-vm6rh
      @YashaswiYadav-vm6rh Год назад +1

      So true 😬

    • @ivi.py7999
      @ivi.py7999 Год назад

      @@proffoctopus66yearsago22 really we're taught this all in 1st or 2nd standard... she's not exaggerating!

    • @proffoctopus66yearsago22
      @proffoctopus66yearsago22 Год назад +3

      @@ivi.py7999 I live in India and i've never been taught this and I study in ICSE!

  • @yangyang2893
    @yangyang2893 3 года назад +45

    I'm doing this to impress my math teacher because he knows im a failure-

    • @Metternich_Enjoyer
      @Metternich_Enjoyer 3 года назад +3

      Here in Germany we learn this method in the end of first grade lol

    • @hsjwjhshhwaj5015
      @hsjwjhshhwaj5015 3 года назад +1

      Really? I think u guys are really smart, lol when I was first grade we learn how to draw, lol🤣🤣

    • @arjunarun9147
      @arjunarun9147 2 года назад

      @@hsjwjhshhwaj5015 huh...you must've been homeschooled or smth

  • @Caleb-bv7ep
    @Caleb-bv7ep 3 года назад +5

    I will literally watch this multiple time later cuz this is fascinating and very informative. I'm subbing and turning on all notifications thanks bro

  • @Chess_master_007
    @Chess_master_007 Год назад

    it’s working it’s ACTULLY WORKING WOW Thanks to you Mike shake ❤

  • @merwinpinto1286
    @merwinpinto1286 3 года назад

    Wow amazing i love these trick ITALY HAS TALENT !!! this stuff Is really amazing it is almost like abacus , I fell in love with maths calculation with the help of MIKE SHAKE !!!

  • @epic5852
    @epic5852 3 года назад +33

    And that's why humans invented a calculator lmao😂

    • @namansingla2975
      @namansingla2975 3 года назад +3

      That's the most Western thing I've heard in a while!

    • @epic5852
      @epic5852 3 года назад

      @@namansingla2975 😂😂

    • @sharonjuniorchess
      @sharonjuniorchess 3 года назад

      You can do these tricks faster than the time it takes to enter into a calculator. But its not really about speed more about seeing how numbers work. If kids want to learn some of these tricks they will be learning algebra without realising it.

    • @epic5852
      @epic5852 3 года назад

      @@sharonjuniorchess so true maytee

  • @sixtysevn7574
    @sixtysevn7574 3 года назад +6

    0:45 it works because for example if you put variables such as (10x+y) times (10a+b) it turns into 100ax+10bx+10ay+by

  • @akansht01
    @akansht01 2 года назад +1

    Thank you soo much ❤️

  • @nutnut352
    @nutnut352 Год назад

    Thank you so much finally I got it 😊💖💝

  • @4teenjelo128
    @4teenjelo128 3 года назад +11

    Bro the fact that he’s teaching us🙏🙌🙌

  • @aadarsh_chaurasia
    @aadarsh_chaurasia 3 года назад +7

    0:25 this method is taken from vedic maths of India you should check out and i know this one method and it is even simple then what you have told or read from somewhere you sould definately check out vedic maths

  • @mostafamansour2495
    @mostafamansour2495 2 года назад

    Watched the video and subscribed immediately BTW you are very in your explination

  • @ankitkumarbhoi3360
    @ankitkumarbhoi3360 Год назад +1

    Its way fast than I was thinking ❤ Thanks 👍

  • @mujtababiyabani2151
    @mujtababiyabani2151 3 года назад +18

    *Love your english accent*
    *By the way I learned something new today*

  • @aryashetty3924
    @aryashetty3924 3 года назад +14

    You can actually do 3x3 multiplication by using the same 2x2 multiplication trick and it's faster than drawing lines method. You can also do 3x2 multiplication in the same way by just putting 0 in front of 2 digit number to make it a pseudo 3 digit number. In the same manner you can do any n x n digit multiplications and it will take you less than 10 seconds with good practice. That's how I learned to do multiplication very quickly in my school days. Although I no longer use it in my engineering classes since calculators are permitted😅. So overall really cool trick for everyone to learn.

  • @dozy8914
    @dozy8914 3 года назад

    Best teacher ever!

  • @BradfordSterling
    @BradfordSterling Год назад

    really good teaching

  • @JamesBond-tj8lz
    @JamesBond-tj8lz 3 года назад +15

    The funny thing:
    In germany we learned really similar ways so calculate like this in primary school 😅

  • @mrshoot3934
    @mrshoot3934 3 года назад +17

    The accent of this guy is so interesting and funny I laughed for 5 minutes straight!

    • @Dep7jok3r
      @Dep7jok3r 3 года назад +2

      He is italian ... that's why his accent is funny

    • @orangotango9231
      @orangotango9231 3 года назад

      @@Dep7jok3r im italiano and when i heard him I thought he was italian and I was right😂

    • @Dep7jok3r
      @Dep7jok3r 3 года назад

      @@orangotango9231 anchio sono italiano fra... si sente un sacco l'accento italiano

  • @joe_mama9842
    @joe_mama9842 3 года назад

    Thank you my friend

  • @CenationGamers
    @CenationGamers 3 года назад +7

    What you tried so hard to learn is what most asians, especially Indians, learn as a kid
    We thoroughly appreciate you learning it
    This is called vedic maths

    • @imranyspiano9654
      @imranyspiano9654 2 года назад

      I didn't learn it at school but I worked it out myself.

  • @shreenidhik.k.365
    @shreenidhik.k.365 3 года назад +17

    Me trynna type Mike shake on RUclips
    My keyboard: you mean milk shake??

  • @silence8137
    @silence8137 3 года назад +3

    You do great man🔥
    Love from India ♥️

  • @Lebuge20
    @Lebuge20 2 года назад +2

    This is a type of channel we didn't needed, but wanted

  • @myly30
    @myly30 Год назад +1

    Thank you 🤗🤗🤗