How to Multiply Numbers Lightning Fast like Shakuntala Devi (Mental Maths #4)
ฝัง
- 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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Mental Maths 2(addition,subtraction)- • How to Calculate Faste...
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To be honest, I really don't depend on school for Math anymore, I depend on your videos, because they make me understand better.
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I am little afraid of maths but watching your video is really magical as well as logical
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@@LongNoss That's what it's called in the UK I think
Nothing to be afraid of maths !!
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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!
glad to hear that !
@@mathOgenius would you tell me about 18 square
Bruh
@@ilikecars2025 Wat?
The best video for mental maths
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 :)
I am not the best in maths but because of you I can see big improvement.... thank you
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।
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.
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.
Very impressive I can see here the beauty of relationships between numbers. This is full of fast thinking and creativity
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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.
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Filipino subscriber here 👋😁
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.
I agree with you, i think slowly i will calculate at decent speed atleast
Exactly same feeling
Yeah but doing mental math and paper is faster that the school thaught way.
I can flex in front of my maths sir now 😂
Same
Also in front of friend
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
@@fezan173 how?
@@amlanpanda7619 I just memorized
Thank you so much! I want to improve my mental math's and you are the right person to go to! Thank you!
You are the most relaxing mathmagician I have ever listened to. Have a good day.
:)
Am I the only one..... Struggling to understand....
Yes.
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All I understand is " tree ... tree .. tree ..." 😊
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m3 too
Yo toy con subtitulos por que no se ingles 🥲🥲
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
I am enjoying your unique way of teaching mental math.
I am from Bangladesh🇧🇩... This video is so helpful... ❤
Me too from Bangladesh 🇧🇩 . crisscross er bisoy ta hijibiji lagse .tmi ki jei dag gula dise oigula bujso?
@@tanianoha2598 ha...bojhechii tu..akto valo kore arekbar vidoe ta dekho bojhte parbe...
This is such a nice square calculation, I love it !
I am a student and this truly helped a lot, i hope he becomes a teacher
Thanks so much! You're so good at math, just look at how many trophy's he has.
Being one of running maths with this guy i always shine with math
Last crisss cross method i didnt understand😭😭
But u teached op....😄😄😄 best
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Look at the awards behind him 🤯
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 😊😊😊😊
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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 :)
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Tomorrow is may mental math competition at state level these videos are very helpful
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Sure!
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it is helpful for going back to School and for being learning a new way of Learning Basic math
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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.
Watching this during online classes is really benifited🙌 🤪
Well done keep it up
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this is the best from just liking maths to loving maths
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 :)
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Just understood it . Wow! Thanks , very helpful and engaging maths !
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
your explanation is very good
Thanks very much bhaiyaa
I wasn't aware but i was using factoring method for a long time.
I learned this myself doing difficult operations.
It's really magical to practice your tricks at home
this is really helpful for me cause I'm getting into harder math thanks man!!
Thanks man! this is helpful
1:35 2:27🔥&& square any 2-digit number
Súuuuuuuuuuper trick. Thank you so much.
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Just started joining this guy .And it's really helping me thank you so much
Nice video mathOgenius!
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
I THANK THIS MAN SO MUCH
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.
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.
@@kandanat thanks
Those who can handle numbers in mind are the winners in the race of life
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Shakuntala devi pride of India🙏
This is superbb💯
I even can't find it in Vedic math
You are one of the best thanks for giving us your time
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.
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…
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Great math skills keep it up 💪💪
If you have your squares memorised then 42*46 is 44²-4, which is 1936-4=1932
It helped me in my exam sir
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thanks !
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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 ❤️
Thank you so much mathOgenius it helped me get improvement in maths thanks.
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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
I will always follow left to right
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