How to Calculate Faster than a Calculator - Mental Maths #1 

Nice 👍

Yes!

Yes it was amazed

pls continue this

@@mkdhayalan1443 hi, yes its till 4th part now, 5th is shot , need to edit and upload :)

Because it not necessary to teach. Why need a mental math if there is a calculator. What is to develop is the critical thinking skills, and that is the basic concept only that as long you know how to multiply then can now use calculator and want to be a competitive and math enthusias then it is good for. Because you cannot teach the learner this if she/he is not interested anymore on mental math. And last in teaching is should always general or it follow the rules

@@icogalero1999 go and write a competitive exam u will know what is the use of mental math

@@ashishkumarnayak3368 dude literally said mental maths is required by competitive and math enthusiasts.

@@ashishkumarnayak3368 you didn't read properly

@@sam_edits23 I meant u don't get a calculator in maths exams...its extremely rare

this is fake, because: take 88 x 88 as an example. 88 88 8x9 = 72 and 8x8 = 64 which makes it 7264. 88x88 is actually 7744

@@Naina-kq6jf just say that you did not understand the trick

Copied

Why

Why?

Why?? Bhai?!

@@abhinav3681 why you gotta say hes being racist hes not saying anything mean so you dont have to say anything maybe something to support the guy that made the video like dont go around saying “racist” all the time people like you start using the word too often only use it if someones being mean to someone with the soul purpose of offending their culture, race, or religion

this is fake, because: take 88 x 88 as an example. 88 88 8x9 = 72 and 8x8 = 64 which makes it 7264. 88x88 is actually 7744

That method only works if the Ending digits is adding to 10. 8+8= 16 not 10

@@alexandraqfernando6796 where does it say that

@@Naina-kq6jf look at the pinned comment.

@@alexandraqfernando6796 okay

thanks 😁

I love this! Now I need you to teach me how to speak with my teeth clenched.

@@HQBergeron sorry this is a math channel not english.

For real though. Going through school they taught us too heavily to rely on calculators, now I'm starting to realize just how terrible that approach to learning was, calculators are useful but developing number sense through mental math is IMO essential to using math, it's more fun too.

@@SekiberiusWelkesh I grew up before there were calculators, so doing math on paper or in my head where possible was just what we did. Adding a calculator to that in college was a major bonus, but I still knew the math by traditional methods. When it became obvious to me that was not how my sons were being taught in school, I began giving them fun math problems in the car whenever we were driving so they couldn’t use a calculator. They learned how to do quick estimations, tricks for exact calculations, conversions, etc. It didn’t seem like much at the time, but they both turned out to be good at math in school, and one of them scored higher on one of the standardized tests than the school staff had ever seen, even beating out his best friend who had the particular gift of being able to repeat and remember forever any 30 digit number having seen or heard it just once (One time this friend met a girl, also a numbers nerd. He asked what her favorite number was and she rattled off some very long number which had some significance to her but not to him. He says “OMG, that’s my favorite, too!” and repeats it back to her. She bought it and agreed to go on a date with him). Anyway, I think those little number exercises helped my kids with their math very much. Of course, one has to know them to be able to teach the kids, and I’m not sure many teachers these days do, never mind parents.

OH my''''''

Yeah.

Fr my class takes 45 mins of boringness

So true

My friend who lives in India can calculate 456 x 647 and did it in 40 secs

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-mZQhTgK5J9k.html

@@anglewhite4141 rick roll?

begula is that you?

@@thebookworm4487 its not its a fan and also beluga pfp is a cat named ollie or maybe oli idk

Hahaha

Do u mean ur 11 yr old kid is teaching math for3rd graders ?!

this is fake, because: take 88 x 88 as an example. 88 88 8x9 = 72 and 8x8 = 64 which makes it 7264. 88x88 is actually 7744

@@Naina-kq6jf "That the last trick of numbers like 92×98 is not working for some other numbers . In the video I have clearly said that the ending digits should add to 10. like in 54×56 (6+4=10) , 92x98(8+2=10), it won't work for 57×56(7+6=13)"

@@Naina-kq6jf 8 + 8 doesn't add to 10 so the trick doesn't apply.

@@tkarthikeya5872 racist detector

@@tkarthikeya5872He is complementing Indians

Everyone in the replies calm your ass down it is called a joke.

@@kronowtf i don't think you even know what racist means 🤦‍♂️

@@kronowtf you're the one who needs more "class" , clearly you don't even know the definition of the words said here 🤦‍♂️🤦‍♂️🤦‍♂️

You got it sis !;)

@@lavenxiisubs8400 ♡

Same

same

Same.

I'm a Canadian male of a similar age. Math came easily to me, right from the beginning. The metric system has been vastly more useful to me than the old imperial system, because I think like an engineer. Thank you, Pierre! Imperial is harder than metric if you have any kind of worldly view. Barely any two English-speaking countries are completely the same. But metric is the same everywhere. And that's not a small thing.

Me

Me 😂

Me

Me also broo😂

Here

Thank you Anna

he wasnt talking to u lad@@Cricket__facts__official123

ha ha,keep practicing!

* we were *

@@eleliminador4010 nah he didn't meant to use past sense so he's right

@@alicodm5120 yep

@@eleliminador4010 ll

Attacks on Indian people have increased in US so I hope he doesn't go there😂

this is fake, because: take 88 x 88 as an example. 88 88 8x9 = 72 and 8x8 = 64 which makes it 7264. 88x88 is actually 7744

@@Naina-kq6jf this tricks mostly works when the 'ones' value is 5=>. not fake actually

@@Yondr_917 yeah, key word: mostly

It should be (3+7)x2

or instead, just multiply the first number by 2 and divide the second by 2, so that 37x22 becomes 74x11

Or You can just write 37×22 as 37×11×2 then 407×2 which equals 814

@@nandkumars.vanamali1336 this was easy thx

@@leocarne2281 precise ♥️

Same

Lol

😂fr ;)

Same LOL

this is fake, because: take 88 x 88 as an example. 88 88 8x9 = 72 and 8x8 = 64 which makes it 7264. 88x88 is actually 7744

ru-vid.com/group/PLjGnVzD4rvf3XeeXLzySD4MpniMuub-5e Short trick of Typical questions of maths in 1 second for all latest govt.exam

Nice

thankyou

Me too I don't.he' very good.

😊

lmao

In dreams

😳😂

*As simple as that!*

😂😂😂🤣🤣🤣

Right. There's a lot of them up there

Y are great.

damn I didn't even notice 😳

this is fake, because: take 88 x 88 as an example. 88 88 8x9 = 72 and 8x8 = 64 which makes it 7264. 88x88 is actually 7744

That one kid in the back of school: watch’s educational video and Roblox RU-vidrs:😅

Ikr lmao

Gay

@Ashmalløn *you're

@@tadeolho3634 what the fuck how is this gay :/

​@@tadeolho3634why are u showing ur identity here 😊?

this is fake, because: take 88 x 88 as an example. 88 88 8x9 = 72 and 8x8 = 64 which makes it 7264. 88x88 is actually 7744

Thanks 😁😁 part 5 coming soon

ما إسم الكتاب

Yes😂

😂

😂😂😂🤣🤣🤣🔥

😂😂😂😂🤣🤣

Ure mean, plz don’t do it another time. Good vibes only, evil jokes aren’t necessary :) i love u 🥰🥰

that always happens

Just like how I forgot I was a doctor and told a dying patient to go to the hospital

Not correct at all situation, if u do like him tricks lets try 15*17 = 255 (using calculator) = 235 if using that dumb trick

​@@andykaandyka9897As he says in the video, the ending digits have to add up to 10 for the trick to work. For your example 5 + 7 = 12 ≠ 10, so the trick doesn't apply. Now, you could generalize the trick by adding or subtracting 10 times the difference. For example, to calculate 17 × 15, the end digits add up to 2 more than 10, so add 20. 17 × 15 = 235 + 20 = 255.

still not correct for example 805*805 acc to the trick it should be 720025 but the answer is 648025

​​@@xyz-zm8ew you made a mistake somewhere 805*805 = (80*81)25 = 648025

@@xyz-zm8ew because as we all know the next number after 80 is 90

Made by an Awesome human, published in an Awesome Website/App. Watched by People who wants to be Awesome toom

Its not true what he teach, try this numbers 87 × 89; 35 × 32; 95 × 96; 34 × 34

watch the video carefully..

​@@partigaltheking2132 You need to numbers at the end to add to 10 otherwise it won't work like he said eg 34x36 57 x 53

They r not one of the the are the smartest

@@kavyarao2243 He probable thinks so bcos most of the Indians migrating to usa/west are IITans, highly educated , upper class ,scientists, engineers doctors and IT professionals. Brain drain is really killing our talent pool.

Yeah but definitely not in English LOL

Sum wat ?!?!😢😥

@@JadonCrafter45 you have to add one 5 + 1 = 6 so 5*6

Doest work for 75*25

@@JadonCrafter45 What...? Did you reply to the wrong comment?

​@@fingerstechhubstarting no. should be same

this is fake, because: take 88 x 88 as an example. 88 88 8x9 = 72 and 8x8 = 64 which makes it 7264. 88x88 is actually 7744

@@Naina-kq6jf That the last trick of numbers like 92×98 is not working for some other numbers . In the video I have clearly said that the ending digits should add to 10. like in 54×56 (6+4=10) , 92x98(8+2=10), it won't work for 57×56(7+6=13)

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-mZQhTgK5J9k.html

We’re all geniuses, but if you judge a fish by his ability to climb a tree, he will believe he’s dumb all of his life :) i love u

Yes

Thanks you this is amazing

who said 90% of people won’t practice?..

The genius on this video - MathOGenius

Hi

@@theonepiece3223 hello

Master. Join HK. tuk MLM ini master🙏

I guess it will if the difference between the numbers is even only

😢😢😢😢😢😢 😅😅😅😊

Yeah do not worry, I have just uploaded it , soon will get views if it deserved !

@@mathOgenius oh lol didn't even notice, i found this by just searching "maths"

Oh really ! thats cool ! I am coming up on search ! 🥳🥳 soon will hit 40k subs.

@@mathOgenius for sure , i love ur way and style of teaching , actually I am an engineering student ,used matlab , and was checking scilabb , and saw u , I really wanted to see u , ended up watching max of ur videos , pls do increase more and more contents , and now my midsems are coming(1st sem ), pls reach me out for any digital works and animations etc , I will do for free , in my spare time , I love maths and physic like anything , and I can really relate u with the detective 😁😉.... keep up the good work bhaiya , I will share this channel , by referring u as my cousin , hope u get some more likes and subs , I l o ve u r ch a n n e l ,.... g o o d p o s I t I v i t y o n m at h s

@biswesh swain Hi, Glad to know that you loved my videos , yes I will love to talk with you and yes I am your cousin 😁😁 you can contact with me on WhatsApp.

this is fake, because: take 88 x 88 as an example. 88 88 8x9 = 72 and 8x8 = 64 which makes it 7264. 88x88 is actually 7744

Shaun

Practice 😉

@@sarahelayyas4306 Practice makes perfect

Poor Memory ?

Must admit I did too. I have a mental block with numbers. By the time someone gives me their phone number,I have forgotten it. Also, faced with numbers I panic and forget everything. I remember in infant school I was terrified in the maths class, the whole period,I might as well have taken a book to read.I couldn`t take it in. Ok with basics but don`t give me a mental arithmetic problem, as for algebra etc, hopeless. It was just a mental blackout.

Lol!!!

@@lan5142 Haha I wish I could get my girl back

There just defining a variable

🎉❤❤❤ I love 💕 you 😘💞❤️ Adina

How does this work

@@SA-bp5kw I will refer you to a video and the name of the method, which is the 'base-method'. If you are interested, you will easily be able to work it out yourself. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Rgw9Ik5ZGaY.html

Yep

Yep

Yep

Yep

Yep