How I learned to Calculate Extremely Fast

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Twitter: / mikeshakeyt
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[@MikeShake]

Subscribe for new skills every week. Check out more skills: kzbin.info Instagram: instagram.com/mikeshaketv

[@caparzo5693]

Hi mike!!!

[@bunga9489]

Hi

[@AyushiSingh135]

Heyyyyy!

[@nashrahnashwan7276]

Hello Mike

[@inovativeplayer11]

I was waiting for this video.

[@pasticcinideliziosi1259]

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

[@rohankadu9381]

😂😂

[@babyg220]

yea? you called my name what were you gonna say?

[@pasticcinideliziosi1259]

@@babyg220 r/usernamechecksout

[@mohammadfahrurrozy8082]

True. These multiplication dont exist in math degree

[@desktopnotfound4559]

kzbin.info/www/bejne/ppbTZ2Rurr17jKc

[@TristanDefeuilletVang]

Will keep my calculator but thanks bro 😅

[@naxezy9635]

@ClickerzFN i laughed

[@samijacquin8814]

oh tiens tristan

[@nesrinelastar]

@@samijacquin8814 je l'aime trop

[@sohamrakshit1847]

🙄

[@olo-vx3do]

Wow tristangue

[@EpicGameChangerr]

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

[@user-gw8lf8tc8k]

Bruh no 😞

[@creeperbeeper2905]

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

[@Voynage]

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]

So that they can punish us more.

[@shambles3765]

​@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]

I was taught the first one

[@ikennaokoro7894]

@@ItzSwiftyBoy_Gaming they don’t care about you enough to punish you maybe u just lack intellect

[@taehyungsrighteyebrow4709]

Everyone Gangsta until the teacher asks to show the whole process

[@altafbobi2791]

Lol

[@an1ketsharma]

"No marks for direct answers" :(

[@sirinniya7484]

Yo army!

[@tigerstripedsinger]

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

[@pupa6053]

I like your Profile Photo🧒🏻

[@vitanimat0r]

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

[@mattiadossena839]

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

[@luke_s2082]

True

[@youngvic814]

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

[@vitanimat0r]

@@youngvic814 He deserves it

[@desktopnotfound4559]

kzbin.info/www/bejne/ppbTZ2Rurr17jKc

[@acidpop708]

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.

[@umamasalsabil6107]

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!! 🙏

[@aniiiiket9]

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)

[@nickkaparov217]

Respect broda thanks

[@Aman-td9nl]

Vedic maths literally changed my life...

[@learnwithfun249]

yup

[@Gamer-qr8ee]

OR Calculator

[@whoooooo_]

What is Vedic maths? Is it a book?

[@parvathy6279]

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

[@vidipsahoo4968]

L

[@forhadrh]

xD

[@forhadrh]

@DAMN SAM Indeed :)

[@anubhavrana3088]

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]

We not good but definitely become good

[@andrejlykov6408]

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.

[@bella-nina]

woah thanks for being straight to the point and helping!

[@David-sw6le]

most underrated youtuber out here

[@lightd2471]

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

[@ricardomilos2360]

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

[@ravijangrax]

Get ready for A Heart From The creater for SURE 😎

[@lightd2471]

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

[@kadeejafaith4413]

I am from the Caribbean and I know him

[@aleksandarantonijevic1626]

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

[@rohankadu9381]

LOL😂

[@dailydoseofinternet2404]

Yau really truly man

[@MuthuKumar-cf7st]

😂😂

[@desktopnotfound4559]

kzbin.info/www/bejne/ppbTZ2Rurr17jKc

[@hallohallo9892]

I mean, you're not wrong

[@nathandaniel5451]

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]

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

[@nathandaniel5451]

@@ahsanchy5217 wait what? xD

[@devb.9250]

@natahandaiel can u pls explain ur 1st method

[@nathandaniel5451]

​@@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]

How is it going?

[@Fatmasacc]

Thank you, this was so helpful

[@riverbird8112]

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

[@RealGreenrh]

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

[@blackwarrior823]

Meanwhile being Asian! 😐

[@simplepotato3687]

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

[@_.Infinity._]

😂

[@hdhehsgeh1595]

😂😂😂 true

[@ritvikdalal156]

True, so MANY INDIANS.

[@skumarksssk2246]

Yep man is so ez lol

[@yagnikbose8973]

Truly the ancient one....

[@shargo498]

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

[@etueicg8044]

Thx i need this for a math test

[@pizzawonderer5024]

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

[@kaidou_5604]

Fax

[@Meandino804]

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]

Yup😳

[@michaelsfather3664]

This is basic maths i knew when i was 9 honestly

[@lenalenasabri]

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

[@harshvardhanmankotia6492]

Indians: Laugh in years of school mental calculation training.

[@muhammadwaleedarshad4444]

exactly

[@rajarshiroy8794]

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

[@nihalh6482]

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

[@asterisque9252]

Not in syllabus, most poeple do that by interest

[@harshvardhanverma1246]

Harshvardhan?😂

[@arushsingh9868]

thank you very much it helps me a lot

[@dozy8914]

Best teacher ever!

[@jeanmathieu857]

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

[@H8ssan]

Absolutely true

[@Masteraffan]

Seriously yes

[@mistadude]

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

[@nikhilnaik4188]

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

[@siddharthdoshi4858]

Yeah, was literally searching for this comment

[@siddharthdoshi4858]

And it’s not taught in Indian schools tho

[@nikhilnaik4188]

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

[@siddharthdoshi4858]

@@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]

i am moving to india

[@aaryanchoudhary8542]

thanks for video was very helpful for me

[@NetanelColish]

This is amazing ty!

[@basilboni6253]

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

[@basilboni6253]

@@beastybluebird3935 what?

[@cobalt2506]

@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]

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

[@toonvanderauwera4926]

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

[@KAIJUKING123]

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

[@myly30]

Thank you 🤗🤗🤗

[@abdalla5078]

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

[@noahz3429]

a god that's his goal

[@S3NS_]

If he can do it, I can too

[@whothis921]

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]

Yup

[@JackCalvinRoss]

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

[@whothis921]

@@JackCalvinRoss yup

[@hastagvfx7201]

check out mine too ya know

[@satishchaudhary7978]

Where's the heart bro 😂😂😂😂😂

[@FreshAirThe]

Fasinating for sure !!

[@FishbowlKraken]

Love this.

[@ulyxsigma]

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

[@ulyxsigma]

@Sqxare 🤣🤣🤣

[@gokukakatotlegend5451]

✔

[@ztelx3868]

Ikr

[@pranavgupta5747]

*That was the smoothest sponsorship transition ever.*

[@grulightyear8095]

Ong bruh

[@DaJS10]

@@grulightyear8095 Oh No Gaud bruh

[@totallynotme8153]

Dude go to Thoughty2 and you’ll see smooth.

[@UditplayzWHAT]

andddd my youtube vanced skipped that

[@Karltv1]

This was help me so muchhh!!

[@teen_hub]

Thank bro it help Me a lot

[@abhishekrathod9915]

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]

Relatable

[@flochforster8333]

Relatable

[@kevilsolanki645]

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]

@@kevilsolanki645 I can relate to you

[@barbiesshorts4904]

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

[@ndy3882]

Who else think this guy deserves way more subscribers

[@Autonomous123]

69th like

[@oscarking6309]

Like 5 mln subscribers

[@Le_General_Affame]

@@oscarking6309 no like 90 billion

[@xdlighting7758]

Me

[@awesome_aye]

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

[@Nahaintnkway]

The Indian man on KZbin won’t make money then

[@joe_mama9842]

Thank you my friend

[@Loo_Kah]

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

[@Sparcan]

Same HAHAHA

[@hrishikeshpawar4267]

Same here

[@CooperTUGA]

Hahaha

[@inosukehashibira8713]

Indian science students be like: Hold my tea.

[@MikeShake]

😂

[@lwingyi8576]

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

[@mojtabaalfaki9735]

thank you so much this helped so much

[@claymusic2205]

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

[@integralboi2900]

Wolframalpha

[@jesusisreal2604]

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]

@@jesusisreal2604 no one asked

[@harshit3964]

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

[@vicumfernando6659]

Love it man♥️!!!

[@user-eg6dx5rd3u]

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!

[@taehyungsrighteyebrow4709]

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

[@asgardianweeb9776]

@@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]

I'll be the coolest guy😎

[@omupadhyay9222]

@@asgardianweeb9776 asgardian, do you like Thor too?

[@asgardianweeb9776]

@@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]

@@asgardianweeb9776 do you use insta

[@avinashramphal735]

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.👍❤

[@jelly8401]

I'm gonna try this for school thanks bro!!

[@BradfordSterling]

really good teaching

[@letsdomath1750]

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]

What about 26•26

[@afj810]

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

[@emilzamudio1972]

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

[@nutnut352]

Thank you so much finally I got it 😊💖💝

[@akansht01]

Thank you soo much ❤️

[@parrytheplatypusss]

Just what I needed You're amazing dude!!

[@thebookreviewmania4960]

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

[@user-zl5bz2ed2t]

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

[@LNM101]

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

[@angiex_x]

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

[@sharbinislam9468]

Learning this is eazy but telling?

[@sharbinislam9468]

Its really eaze but telling is not impossible but extreme

[@4teenjelo128]

Bro the fact that he’s teaching us🙏🙌🙌

[@MrMikkyn]

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

[@sarangavadiya7087]

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

[@peachDelphinium]

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

[@divyanshadapa4607]

Can we just appreciate this guys editing? Hats off man

[@Volluu11]

this helped me so much, thx

[@shikhasahu9493]

Thank you for this video

[@toxiclogic6885]

Who else thinks this guy deserves at least a million subs

[@FlameTaxi]

By two years you will see this guy with 5 million+ subs

[@bestalpha6004]

no 100 milllion

[@UnlimitedVirals]

it is going to come

[@ShubhamKanhere]

Toxic logic

[@Caleb-bv7ep]

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

[@misterkoneko2389]

Thank you

[@ahmaddashti7376]

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

[@Taigokumaru]

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.

[@aikonickle]

Whats the last method called?

[@gameinbeast4985]

?

[@mj47_dreamer]

Thank you for writing ! ❤

[@hamptoncalledmehisfriend6y383]

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

[@warltzi553]

Ikr same 😂

[@amnajshaikh]

Why did I read that as milk shake djdjjd

[@hamptoncalledmehisfriend6y383]

@@amnajshaikh 😂😂😂

[@Chess_master_007]

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

[@user-wu4lz6sr4x]

i m very thankful to u for teaching me

[@KAMI_x666]

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

[@sixtysevn7574]

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

[@srabanichattopadhyay1925]

This really helped me thanks bro

[@apathly]

thank so so much, you really helped me for real

[@aadarsh_chaurasia]

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

[@aryashetty3924]

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.

[@loop3454]

no cap my fav vid on yt

[@ohkarsworld1500]

Thanks for this video. I understand what u explained

[@yangyang2893]

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

[@Metternich_Enjoyer]

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

[@hsjwjhshhwaj5015]

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

[@arjunarun9147]

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

[@epic5852]

And that's why humans invented a calculator lmao😂

[@namansingla2975]

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

[@epic5852]

@@namansingla2975 😂😂

[@sharonjuniorchess]

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]

@@sharonjuniorchess so true maytee

[@SuperYoonHo]

Thanks!

[@lightsky69]

THANK YOU SO MUCH

[@mujtababiyabani2151]

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

[@steveopabloescobar4210]

The legend is back.

[@user-bp9qe1wc5i]

Well thank you❤

[@anyway4682]

You are great man

[@mrshoot3934]

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

[@Dep7jok3r]

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

[@orangotango9231]

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

[@Dep7jok3r]

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

[@JamesBond-tj8lz]

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

[@abhinavchoudhury7000]

Indian me first time i feel good about myself

[@karankewatcc]

Thanks Mike

[@ProfQED]

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

[@Aysh_Sach_16-2]

hello Mike, are there more such tricks for addition and subtraction as well?