I remember seeing a little simpler version of this method in a math book a while ago. Basically instead of memorizing the cubes of numbers from 1-10 (although doing so would help), you just have to remember the number 2837. This is because 2 corresponds to 8 and vice versa and 3 corresponds to 7 and vice versa. If you look back at the cubes table you'll notice that for every number other than 2, 3, 7, and 8, the units' digit of the cube is the same as the units' digit of the number. So to find the units' digit of the cube, you just have to check whether the number is 2, 3, 7, or 8. If it is, then write the corresponding number (if it's 2 then write 8 and if it's 3 write 7 and vice versa) and if it isn't then write the same number. Hope this helps!

@AdityaSharma-rg2wt

2 жыл бұрын

Please tell the name of the book please.

@anonymousone3024

2 жыл бұрын

Yup

@ritikagupta626

2 жыл бұрын

this really helped :))

@wobblyorbee279

2 жыл бұрын

really really helped thx

@wobblyorbee279

2 жыл бұрын

yeah what is the name of the book?

Why they don't teach us this in school????

@johnallegood4469

7 жыл бұрын

Nenmeu 16 bc it's a shortcut

@historyaddict2753

7 жыл бұрын

But the cubes of 1-10 that you should know by heart make up the 3 digit cube roots.

@KotakDhruti

7 жыл бұрын

good method but how to recheck fast without use calculator.

@patuchothe6388

7 жыл бұрын

Nenmeu 16 yes bhai

@keamorshedsoccer1382

7 жыл бұрын

Nenmeu 2 I know right

Caution: this works only when you are asked to calculate cube roots of perfect cubes. Don't brag anywhere and fail if someone asks you cube root of 2198 and you say 12 (using this method)

@fear_less_2020

3 жыл бұрын

at least it will give us an estimate.

@adrian7468

3 жыл бұрын

Omg I was look for this answer all this time. Seems everyone was just mesmerized by this smooth was of doing perfect cubes. Based on this method the cube root of 2197 and 2677 are the same "13". Lol

@salma-zk8ql

2 жыл бұрын

thats why the video title says “of a large perfect cube”

@secretunknown2782

2 жыл бұрын

Caution 2 : this strategy only works upto 99 cube if you use this method to calculate cubes of higher numbers than that your answer will be wrong 😑

@secretunknown2782

2 жыл бұрын

@@salma-zk8ql nah bro only works for two digit numbers means this only works upto 99^3 after that you can’t use this method and get the right answer For ex. Cube of 103 =1092727 Now use this method The answer you will get by using this method will be 143 Which is wrong 😑

Wish you could calculate Cubes & Cube Roots of large numbers in seconds? Then enroll in our full course now - infinitylearn.com/cbse-fullcourse?KZreadDME&H0l1u_xQ5o&Comment To watch more videos on middle school Algebra click here - bit.ly/MiddleSchoolAlgebra_DMYT

@rajyalakshmi9650

4 жыл бұрын

Could you say what is the secret of your animation in this video

@priyalpanchal8620

3 жыл бұрын

Such a nice teaching method

@CreativeTechTubeOfficial

3 жыл бұрын

I've been just able to solve any number's cube or square root in 2 secs!

@nikhiljamwal6468

3 жыл бұрын

If 12167 is the cube root of 23 then the cube root of 11167,13167,14167,15167.........26167 is also 23🤔🤨😐

@dctc-_-3934

2 жыл бұрын

Thank you

I am a student of B.sc (Hons) course ,I didn't know this easy method before watching your video !! Thanks for sharing this helpful video .

@prajit_me

2 жыл бұрын

Wt is Hons

@nafsikul

2 жыл бұрын

@@prajit_me Honours

I overestimated cube roots. It's far easier than what we thought.

@bloodylogan8262

2 жыл бұрын

OI OI OI LUENI ADAE KANKE

@secretunknown2782

2 жыл бұрын

Nah you underestimated it after watching this video 😂 This trick only works upto numbers smaller then 970299

@ashwanikumar-gv6ir

2 жыл бұрын

@@secretunknown2782 yeah but I overestimated small cube roots.

@superhero25e

2 жыл бұрын

True

@saisuhasreddy

2 жыл бұрын

Same😢

One of the greatest Mathematics secrets. I thank you so much.

@secretunknown2782

2 жыл бұрын

Literally it is taught in india in 8th class bruh

@anonymousone3024

2 жыл бұрын

Well not in my school I'm frm kv

@ronalddump4061

Жыл бұрын

What is so great about it? It cannot be used to find, or help find, the CR of any random number you might encounter in your day to day calculations. (You will with overwhelming likelyhood NEVER encounter a perfect cube in your calculations, and even if you did, you will never know it is a perfect cube anyway) As a practical matter it is entirely useless

Thank you SO much!!! This will come in VERY handy when I am playing Cross Figure, and the clue is something like "Cube Root of 6 Across". I now have a way to work BOTH ways to get the answer! Thanks again!

"First we need to know the cubes of numbers from 1 to 10 by heart.." and this channel is called 'Don't Memorise'.

@salumtummundi9462

5 жыл бұрын

Know not memorise

@arz3nal104

4 жыл бұрын

literally anyone can easily calculate cubes upto 10 in seconds

@hambonefakenamington69

4 жыл бұрын

@@salumtummundi9462 that's just memorising with extra steps.

@hambonefakenamington69

4 жыл бұрын

@@arz3nal104 that would take time and the purpose of quick calculation would collapse. Memorising them is easy tho I guess since they come up a lot while solving.

@crafter3890

3 жыл бұрын

Ladies and Gentlemen, we got 'em

I wish I had known this earlier! This is amazing! Thank you!

このように説明されれば「確かに！」と納得できます😆 またひとつ役立つ情報を得ることができた😊

Actually...the estimating methods for cubes is somewhat like this.......😅😅

@diwakarmishra5440

3 жыл бұрын

Me also indian and also AGREED

@Santosh-lx9gh

3 жыл бұрын

Yeah really

@Santosh-lx9gh

3 жыл бұрын

Not somewhat

@aishwaryakonduri7933

3 жыл бұрын

Yeah

@girlsvsboyslegend3636

2 жыл бұрын

I agree with you bro 😊

your english is excellent

@yashkeysandvoice5872

4 жыл бұрын

[6B8]梁家誠 LEUNG KA SHING agreement made

@1brahimabbasi

3 жыл бұрын

💪😉

Thanks Ma'am. Tomorrow is my Final Exam of Mathematics and your method will really help me to solve the problems related to cubes and cube roots. I have also watched your video where you were teaching about how to find the square root. Thanks again.

@sachindhumal8977

Жыл бұрын

Oooopsie

@hardocore

7 ай бұрын

21952

Seriously its awsm it saves my time a lot..😍❤

NICE! I can't believe I didn't know this before, it actually works.

lol Channel's name is "Don't Memorise", puts up a video how to do cube roots in a few seconds. One of the requirements is to memorise the cubes from 1 to 10. That being said, nice video.

@moorthiadithyan8559

7 жыл бұрын

useful trick....

@ruwandigeekiyanage1567

5 жыл бұрын

+moorthi adithyan 😅😅

@madhvi0769

4 жыл бұрын

Pagal hai kya

@madhvi0769

4 жыл бұрын

Are you mad

@adnanmohammed1727

4 жыл бұрын

😂

Great video! Very well explained

The trick was very simple and you won't beleive if I tell you something! I am able to calculate it within 5 secs🥳 Thanks a lot to Don't Memorise channel and members❤️

@InfinityLearn_NEET

3 жыл бұрын

You're most welcome Vaishnavi. We are glad that you understood the concept. For more videos, please visit our website - dontmemorise.com/

@37rainman

10 ай бұрын

But there is no utility in being able to find the CR of a perfect cube. (Except for being a party trick, and that will wear thin VERY rapidly)

@vaishnavibalaji24

5 ай бұрын

Well yeah but it's for the spontaneity. You know, sometimes it can be used in school exams and even in olympiad exams as well. And I saw this comments just now, after 4 months😅@@37rainman

THANK YOU FOR LETTING US KNOW THIS TRICK. IT IS REALLY HELPFUL. THANKS AGAIN

@InfinityLearn_NEET

3 жыл бұрын

Most welcome, Hydra Vedansh! We are glad our video could help you. Keep watching and learning!! 🙂🙂

this method is amazing i tried it right after your first explanation and couldnt believe my eyes...IT WORKED!! Thanks Dont Memorise

Wow I was astonished when I did this so quickly and correct...😱 Love you don't memorize!!! Great job

@InfinityLearn_NEET

3 жыл бұрын

Thank you so much Anukriti for your kind words. We are glad that you understood the concept. You motivates us. We love our Pi Army and would like to stay connected.🤗🤗

@captainanu102

3 жыл бұрын

@@InfinityLearn_NEET Thankyou

Explanation given by you is very Simple and intresting thanks for uploading this video

Amazing. It took me 3 seconds to solve the problem. You are just amazing

@anooptripathi3267

3 жыл бұрын

Heyy.... Same here bro

Thank u so much. It really helps me a lot

Oh my goodness Thank you so much! You're a lifesaver! So helpful and so easy!!

@InfinityLearn_NEET

5 жыл бұрын

Thank you very much for your appreciation and for watching Fatima. :)

@fatimafazal7675

5 жыл бұрын

Don't Memorise Not at all! :)

@ronalddump4061

4 жыл бұрын

How did this material "save your life", or for that matter help in any way?

@fishtick_3567

3 жыл бұрын

@@ronalddump4061 she/he probably had an exam

@secretunknown2782

2 жыл бұрын

@@fishtick_3567 so she was gonna suicide if she failed at exam wut an idiot

Very interesting solution.I like your teaching techniques.I am also math teacher and follow your style.

Woah ! I didn't know this till my master's !

Just amazingly solved Why isn't all this taught in school ???

@archimedesmaid3602

4 ай бұрын

Because it will not be useful for anything you will do with maths in your life. Think about it! You are doing a calculation and in it, you find you need to find the CR of 2659.8. You need to find the answer to 4 digit accuracy. Will this trick help in any way? The answer is no -- it wont help in any way to find the answer

Well, that's great, but could you please tell that how do we solve cube roots for numbers that are imperfect cubes?

Thank you , it's very helpful. 😊

THIS IS GENUINELY GENIUS, SAVE THIS CHANNEL AT ALL COST 🗣🔥🔥

Ahh finally i got the vdo of my undertanding level 🤣 ihave been really dead facing problem for this.Thanku for this vdo🥰🥰. It made me cry🤧🤧🤧

💓 thanking you , sir

This is really amazing, it saves me the time to calculate AND is easy to grasp, becuase of this trick I can attend my Math Test tommorow, Thank You! :))

Well described and very helpful thanks

If they taught us this in school, half of 8th grade would fly by!

@gs336

5 жыл бұрын

But not 9th

@SujalRajput10

5 жыл бұрын

Uhh, even if a number is not perfect cube this method will tell us it is Just try adding 1 to any perfect cube they gave eg for and apply their method. So don't use it unless you are damn sure it's a perfect cube

@sayonmondal3454

5 жыл бұрын

Yes in our school it is taught in 8th

this method can be used only on perfect cubes if u add one number in 2197 i.e. it become 2198 even the it shows that it is a cube of 12 bt notice that the cube of 13 will never be less than 12 and actual cube of 12 is 1728... So my advise is dont use it in exams (-_^)

@samarthsingh5612

5 жыл бұрын

I think you're right This method doesn't apply everywhere, only in perfect cube. So I'll also do this SUGGEST. Because we will apply for quick access to exams but what does it mean when it gets wrong?

@ironrod9212

5 жыл бұрын

Right

@anwarimulla8709

5 жыл бұрын

I agree..

@sergiu2325

5 жыл бұрын

I have a video explaining how to do that?It is not the best thing I did but it is my first uploaded video ever.

@mohamedkasim9626

4 жыл бұрын

Yes

Thanks...this concept was explained very well

Wow...this was really a good trick to save time😊

Although I had learned this in school, I had forgotten it in no time.

The trick is only applicable for a number which is a perfect cube and not for every number. For example according to the trick, cube root of 274624 should be 64 which is not correct. 64^3 = 262144

This is the best channel I ever come through in my life....... Your superb a big like from me 👍👍👍👍

thank you for the short cut, it helps me alot :D

@searcher565

2 жыл бұрын

Is this work for 33603 ?

this is useful for me

@InfinityLearn_NEET

7 жыл бұрын

Yay!

@ryan2-518

7 жыл бұрын

Don't Memorise what if the answer is irrational

@ryan2-518

7 жыл бұрын

tampicokid it can help on a bonus on a test but u can't use a calculator lol

@raghunathganguly3367

6 жыл бұрын

#SMRT4JOBS

supper

Excellent video. I am very pleased with the teaching . It really helped me to improve my skills. I want don’t memorise to publish more video

@InfinityLearn_NEET

5 жыл бұрын

Thank you for your kind words! We really appreciate your compliment :)

@ronalddump4061

4 жыл бұрын

Ma'am, if teaching people such things on utube gets people interested in math, there is value in it. I give you that. But beyond a party trick, there is no use in a method to find the cube root of a number which you got by cubing an integer 1 minute previously. This method has no value in the real world of calculating. FI, lets say the number I need to find the root of is 5792.66. Can this trick help in any way on my path to finding the root of that number to, say, 5 digit accuracy? No, it cannot, not one iota. Why not simply teach the method to find the cube root of ANY number?

Your teaching style is so good

damn awesome trick😆😆😆

This is a good shortcut method this is amazing!

@InfinityLearn_NEET

4 жыл бұрын

Thank you, Sam. Happy to know that you liked our video. 🙂 To watch more such amazing videos, get in touch with us at: bit.ly/DontMemorise_Register

You are spreading light... So noble.

Don't know whether this is vedic maths or what but it's just awesome and i loved it!!

How to find a cube root of a decimal number

@ryan2-518

7 жыл бұрын

//ANNONYMUS// or if the answer is irrational

@gamingfever2.088

4 жыл бұрын

Yes thats what i needed So i came here....... BUT THEY DIDN'T COVERED THAT TOPIC

Please explain how to solve the cube root of 9 digit numbers ?

Mind blowing. Very easy method. Thank you so much.

@InfinityLearn_NEET

4 жыл бұрын

Thank you, Jayachandra for your kind words. Hope you had a great learning experience 😊

Thank's Don't memorize I understand this method and solved any cube root

I love this trick just bcoz of u I will top in maths thnku very much

What if it's not a perfect cube number ??

Your video is very brilliant and....you're like the best teacher for us.. Thank u so much😊❤

Dont Memorise,thank you so much for your nice explaination and for the way you teach . Please can you kindly make a video on euclids geometry?Thank you so much.God bless you.

I'm a commerce student it is easy to understand Maths

@InfinityLearn_NEET

7 жыл бұрын

Awesome :)

@lataadhikari7436

4 жыл бұрын

No one really cares

for 1675??I didn't get the right answer??is there any condition some numbers??

@InfinityLearn_NEET

7 жыл бұрын

Yes Mani. go through the description of the video. It works only for perfect cubes :)

@cipherunity

6 жыл бұрын

The trick is only applicable for a perfect cube. In your case the number 1675??1 is not a perfect cube. for all values of ??

@jameshumphreys9715

5 жыл бұрын

@@InfinityLearn_NEET you never said perfect cube roots in the video

@shaikghouse4501

5 жыл бұрын

Is it perfect cube

@souramitadebnath2732

5 жыл бұрын

Den how we will understand that it is a perfect cube or wht???????😐

Wonderful mam😍thank u sooooo much this helped me a lot

Thanks for the trick today is my exam and now I am mastered in it 🤩. Thanks for video. Subscribed

I didn't fail math because of this video! :D

verygood

@InfinityLearn_NEET

7 жыл бұрын

Thank you :)

@aravula

7 жыл бұрын

Kushagrasingh Chauhan क,च

@TauGeneration

7 жыл бұрын

Kushagrasingh Chauhan kissass

Can you also make a video on finding cube roots by long division method?

This trick is so nice 👍 i tried it with all the sums in my book and I got all of them right it's brilliant 😊 it great for MCQ exams too so you don't waste a lot of time I have been practicing it for 15 minutes and now I can do it orally too under 10 seconds thank you so much

Fastest video i have ever clicked😂

how to find cube root of a large non perfect cube

@BOBO-wq9mx

6 жыл бұрын

ravi badiger 😹😹😹

@Adnan_Khan__111

6 жыл бұрын

ravi badiger so u can take it in examination hall.?

@hunterp913

6 жыл бұрын

Mohammad Adnan Khan No test will ever require you to find the cube root of a large non perfect cube without a calculator. And most tests will give you a calculator.

@jameshumphreys9715

5 жыл бұрын

By using the Babylonian method, a non scientific calculator, and paper and pen, to check an answer use Google or a scientific calculator.

Amazing... Thank you so much

@InfinityLearn_NEET

6 жыл бұрын

Thank you very much for the appreciation and for watching Dakshika. :)

Thank you so much, this helped alot

V v v v v good

I tried it on 5149 but the ans is wrong plz sole cube root of 5149

@winonalim5659

7 жыл бұрын

Glen Dsuza the amswer is 59,i have a trick on that

@ubgrad68

7 жыл бұрын

Trick works for whole numbers, not ones with numbers to the right of the decimal point.

@sukhpreetkaur1277

7 жыл бұрын

Winona Lim plzz give the trick for that

@duratyy

7 жыл бұрын

is 19 the answer?

@void9720

7 жыл бұрын

19^3=6859. 17.2679572 is an approximation, but most mathematicians would refer to it as the cube root of 5149.

I remember having a mental breakdown when I scored miserably in the UT. Wish I knew this method back then!! Thankyou for this video

Seriously I loved it and now I can solve it easily Thanks ❤❤❤❤ a lot

please solve this - cube root of 4094?

@yosefmarcera

7 жыл бұрын

15.9973954

@shailyshah7998

6 жыл бұрын

14

@anjaneyulun858

6 жыл бұрын

u r ans is 14 = unit digit is 4 no 4 remaining three numbers leavit single number is 4 so we have check 1 cube and 2 cube lower number in given place so lower number is 1 so ans is 14

@cipherunity

6 жыл бұрын

The trick is only applicable for a perfect cube. In your case the number 4094 is not a perfect cube.

The English teacher was intelligence

I am 13years old and in the 2nd practice sum I got the answer (without watching the answer first in the video) as '48' a slight mistake to not get '58'. Your teaching process is very good.

After seeing first problem I did the second problem without seeing it is so easy to find cube root now and u saved me tomorrow was my exam Thank u very much 🥰

Don't memorise: you have to memorize cube of 1 to 10.

Sir/ Madam by your method the cube root of 166666 is coming wrong.

@InfinityLearn_NEET

7 жыл бұрын

Hi Shubham, this method works only for cube roots of perfect cubes :)

@catherinele6372

7 жыл бұрын

you wrote the devil's number ( triple six )

@37rainman

6 жыл бұрын

+Don't M: Your efforts should lie in teaching people to find the cube root of ANY number to any accuracy desired. (In our lives, the talent to find the cube root of a perfect cube will obviously be perfectly useless, except as a parlor trick). Now make a vid on how to find cube roots quickly and accurately. Obviously it might be a chore because children are not even being taught to add subtract and multiply properly, and likely you yourself are a product of that pathetic environment

@hunterp913

6 жыл бұрын

37rainman One why are you telling her what to do, two use a calculator, three what do you mean children arent taught to add, subtract, and divide properly you sound like a dad who complains that his kid was taught a different method then him

Incredible , who generates such interesting methods.

Ma'am l understood your trick perfectly and thanks for it.... It really helped me.. 😄

I using this in exam

@InfinityLearn_NEET

7 жыл бұрын

All the best :) #DontMemorise

@mjjaanu5202

6 жыл бұрын

Ramon Lockhart I am using this too.

@Adnan_Khan__111

6 жыл бұрын

Concentrate on your english

bakwass hai..we doesn't find all the cube roots of few no.

Amazing. Very helpful. Thank you very much.

super method and thank you for keeping this in you tube

@37rainman

4 жыл бұрын

Why is it a "super method"? You will never in your whole lifetime use it for anything.

Thought it was 83

Like seriously it's just amazing😊thanks don't memorise🙏

@InfinityLearn_NEET

3 жыл бұрын

You're most welcome Siddhi and Thanks for your appreciation. We are glad that you understood the concept. Do support us by subscribing to our channel. 👍👍

Thank you. It helped me a lot.

Incredible , who generates such interesting methods

Explanation was very nice and in simple words😊👍👏

It's amazing!ty

@InfinityLearn_NEET

5 жыл бұрын

Glad you liked it, Taruna! Please subscribe to our channel: bit.ly/DontMemoriseKZread Happy Learning :)

Thank you so much mam. Your English speak is excellent! 😀 🔥🔥🔥🔥🔥 And so helpful and so easy...

WOW THAT WAS HELPFUL THANKS IN MY SCHOOL THEY DID THOUGHT US BUT I DID NOT UNDERSTAND THANK YOU FOR EXPLAINING👍👍👍😊😊😊🙏🙏🙏🎉🎉🎉

@InfinityLearn_NEET

3 жыл бұрын

You are most welcome, Bhargav! We are glad to know our video helped you understand the concept well. Keep watching 😃😃

Thank you Mam so much that because of you I am able to understand that how to find out cube root........👌👌👌👌🙏😇

It's very easy to study it's really helpful for my studies thanks a lots for upload this video sister.

@InfinityLearn_NEET

3 жыл бұрын

You're most welcome Lakshmi. We are really happy to hear that it was helpful to you. We are glad that you understood the concept. You motivate us to do better. Keep watching our videos : )

Loved this method ❤️❤️❤️

This is really helpful for me... Liked this video by heart. Thankyou so much.