Cube and Cube Roots in One Shot | Maths - Class 8th | Umang | Physics Wallah

📝 For complete notes of Lectures, visit Umang Batch in the Batch Section of PhysicsWallah App/Website.
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▶️Complete CLASS 8TH - MATHS ONE SHOT Lectures - • Maths - Class 8th NCERT
In this lecture of Umang batch, Ritik sir is going to teach you the chapter-Cube and Cube roots.
Topics covered in this lecture are:
•Cube of a number
•Perfect cube
•Cube root
•Estimating cube roots
There are many other important chapters that we are going to cover in upcoming videos for class 8. Stay tuned with PhysicsWallah Foundation.
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NOTE: This batch is completely FREE, you just have to click on the "BUY NOW" button for your enrolment.
There are other topics of Mathematics that we are going to cover in upcoming videos for Umang. Stay tuned with Physics Wallah Foundation.
🔴 Details about the batch -
• Recorded Lectures for Class 8th Students.
• PDF Notes of each Lecture will be available on the PW App.
• Weekly Lecture Planner will be uploaded on PW Foundation Community Page.
• Classes will start from 10th January and we will cover the whole syllabus by 10th March.
🎦 Eight Lectures per week will be uploaded.
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#Maths #Umang #PhysicsWallah

[@Navi267]

Who is watching this video in 2024❤❤❤😂😂?

[@shyamneelam6215]

🙋🏻‍♀️

[@user-pw6nu6uq1k]

🙋

[@javeeduzamamalik6348]

Present sir / mam 😂

[@jayantrana302]

Mai dekh raha hh bhidu 8:36

[@zahidabhat108]

If this teacher come to school I will never get bored in math class

[@lokeshsagarraj5622]

Right

[@rakeshrathor2541]

Same yrr

[@ozzybea6754]

same here

[@shabanaperween3699]

Never gonna happen💀

[@gamingherobrine3889]

😂

[@Vikasx1234]

Sir your entry is amazing and teaching is of ❤ultra level

[@shristikumari01]

Kash yah sir hamare school ke maths teacher hote class 8 ke ❤ you are so sweet sir

[@rahuljatt125]

Ha

[@DeepakJaiswal.816]

😡😡😡💪💪

[@Indkajjaiwal]

😂😂😂😂😂😂😂😂😂😂😂😂​@@DeepakJaiswal.816

[@sann2001in]

I am a senior women 67yrs from bangalore. Just as a brain exercise I thought of learning maths from class 8. This cubes and cubes roots is my first video. Honestly i want to tell, it was a very interesting and beautiful lecture. I could understand every bit of your explanation. Thank you so much and God bless you rhitik

[@Ujjwalbhau]

salute

[@brijkishore9716]

Budhi bachpan me kya kar rahe thi 😂😂😂

[@user-ng9et7bz5t]

@@brijkishore9716ur such a jerk like eugh tujhe padhna ni aata kya? Undone bola as brain exercise krna h ufff

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​@@brijkishore9716give respect to her she is senior citizen

[@faixu580]

@@brijkishore9716are you cra,zy

[@fluffbearr_02]

ritik sir❌️ diamond✅️ thankyouu soo muchhhh sir for teaching us!!>>😭🫶🏻

[@craftershatakshi13]

I wish I could have a teacher like you in my school... I'm not good at maths that much but after learning from here I am becoming better day by day.. Thankyou so much sir

[@geetatekale6395]

👍👍👍👍👍👍👍👍👍❤️❤️❤️❤️❤️❤️👍👍👍👍👍❤️❤️❤️❤️ thanks sir

[@amareshkumar7624]

😂😂😂😂😂😂😂😂😂😂😂😂😂

[@fluffbearr_02]

bro....same!!

[@SultanKhan-on1cs]

Bro same situation with me😢😢

[@shreeyahanchate543]

Yess

[@hellbaymax5196]

Sir kal exam hai😂😂😂😅

[@hemrajahalawat10]

Mara bhi

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Mara bhi

[@sushmabhaskar7030]

Ha bhai

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Mera ajj exam hai Ham school Jane se pahale dek raha hai 😂

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Mera aaj hai

[@class9thscience686]

I have never seen any maths teacher like you , you are the best maths teacher , your explanation with examples is amazing and whenever I see your face experiences it makes me to smile , I really really like your method of teaching you are first teacher in my life who is my friend and as well as a great teacher thanks alot sir and thanks Alto to PW team

[@yogitondwal45]

My maths teacher is good

[@A.chaudhary34]

Yes you are right

[@supermovie6697]

Our math teacher 😁😁

[@howtothis-howtothat2258]

So true...

[@durgacharandhruvanth]

Yeah, bro

[@gyanmarg299]

Imagine if ritik sir come to our school for teach math 🔥🔥💯💯

[@its_me_gha]

Vroo 💫✨ than all Student will be topper in the class...

[@Rhythm9460]

​@@its_me_gha correct I hope.

[@SandBox-69]

​@@its_me_ghaback benchers tho ☠️💀

[@BhumikaTamang-pu5pw]

Dil garden garden hogii ree

[@dancewithsahilshree3937]

I am watching this video before exam 😂😂😂but then in have got the 1st prize because I have top in my class thank you sir 😊😊😊❤❤

[@sahilowe9891]

Mavtya gandichya

[@hyperharsh6726]

I am also

[@dreamsedit522]

😂😂 take care about your Grammer knowledge go and study tense😂😂😂

[@RECTANOXX_GAMING_YT]

GRAMMAR IS WORKING VERY SLOW 😂😂😂

[@tfdxnugxugdyrs7td-wu2zs]

Iam also watching one hour before exam😂😂😂

[@AdityaYadav-Sanatanz12]

we want him as our class 9 maths teacher I request PW Physics Wallah 100 times as he is the best teacher🙏🙏🙏🙏

[@akshatmishra8016]

Me checking my playback speed cause his acting 😂😂😂

[@abhakumri9279]

Me also

[@mamtatiwari8184]

Me too

[@G16extra]

Me also

[@mrallin1_SR_editz]

Same here😂

[@IrsadMohd-tq4ik]

Me too😂

[@sonasingh3638]

1:03:14 cube Root with Estimation (ii)4913 =17

[@TejasChandra-oo5lp]

Right

[@kushalshetty5341]

This os the only techer who can turn "i hate math " to 'i love math'😊

[@arkfacts6978]

Ok

[@inquisitivesaisha6440]

Your teaching style is not only informative but also engaging and friendly. It's evident that you put a lot of effort into creating high-quality content, and your passion for the subject matter shines through in every video. Your explanations are clear, concise, and easy to follow, making even the most complex topics seem approachable. i love ur videos sir

[@Towardsgoal09]

Hello

[@But_I-FoundJiminsLostJamz]

​@@Towardsgoal09Hiii

[@shwetasharma7778]

Sir I like your style of teaching you are great 👍

[@tejaswini4688]

12:57. Sir u are brilliant I am weak in maths from 7 years But your videos make me a maths topper Thnku sr❤️🙏🙏

[@amitkumarhsc]

@@UNKNOWN__058 aadhe dimaag he said he was weak in maths from 7 years but after watching his video he is now topper

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same i got 75 marks out of 80

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Real life 🤣🤣

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🥳

[@simrandatta]

firstly i thought my phone is hang because of sir's acting 😅😅😅😅😅😅😊😊😊

[@sonasingh3638]

15:24 If do Prime factorization of 216 then We'll get 2×2×2×3×3×3 Therefore; It form 2 triplets one of 2 And 2nd of 3 then we Multiply 2×3=6 Therefore...216 Is perfect Cube Because its the cube of 6

[@umagunaprthi6948]

Thank you sir 🙏 Now i am able to do cubes and cube roots

[@luckymishra9524]

Sir your explanation is very good and give us a lot of satisfaction and lot of fun and understanding thank u so much ❤❤😊😊

[@Y_ashviSharma]

Thanks alot for this amazing understanding ❤

[@hallohalk9911]

Sir your teaching style is really outstanding. I can't say in words about you.

[@hallohalk9911]

Exactly

[@Starx.z07]

You are true

[@aany........07]

Mind blowing style 👌 😎 sir

[@rifaazeem3277]

We need more teachers like you rhitik sir!!! You're literally the best math mentor studying maths with you is so much fun!🫶🏻

[@Navi267]

Sir 41 ka cube 68921 hai Jis jis ka answer 👆👆 like karo ❤🎉🎉🎉 👇👇

[@khushibhakar8245]

10:59 189 is not a cube Coz 189 = 3×3×3×7 3 ka pair ban raha h but 7 ka nahi

[@brijkishore9716]

Pata hai gyan mat de😂

[@udayadhikari4775]

Peoples who are very poor in maths but still trying like me Believe me we will get good success in our maths 😊❤

[@brijkishore9716]

You are right❤

[@Vidduu]

exams are near nothing is clear no fear when Rithik sir is here

[@cytheria2919]

Haan yeh karlo pehle 💀

[@shresthaandshikhar7203]

7 CRORE

[@Vidduu]

@@shresthaandshikhar7203 bhai nice one

[@Vidduu]

@@cytheria2919 kar he raha hu

[@cytheria2919]

@@Vidduu sahi hai padh lo 8th important hai

[@itssruop9244]

19:42 7 is the least number to make 1323 a perfect cube

[@brijkishore9716]

😮

[@trinadhburidi6023]

Your teaching as friend Thank you so much sirrrr

[@mentalakki4266]

Best teacher ever. Don't have words to express how grateful I am to you Ritik Sir. You should also teach 9th and 10th standards.

[@khushichaudhary6939]

He already do! I think you were not aware about that.....

[@NotMajid03]

legends watching this one day before exam 😎

[@Ambawat_3849]

Raat ko dekh rha hu 1 baje

[@user-ny4tv8mw5w]

Same to you bro

[@gauravbohra4469]

Yes

[@ARstudy123]

Are Bhai legend tu 1st kayse aa gaya

[@tinakuwarjhala9258]

I wish i could have a techer like you in my school...! I am not good at Maths that much bUt after learning Here I am Becoming better Day by day.. Thank you so much sir and also i have this teacher in my school i never bored in maths class😂😂 ❤❤😅😅

[@mohdanha4662]

Stop lying sir is the teacher of physics wallah and not the teacher if your cheap school sir earns 7 lakh monthly

[@Nandani9140]

❤❤

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🎉🎉🎉🎉😢😢🎉🎉🎉🎉🎉❤❤❤❤❤❤❤❤❤🎉🎉🎉🎉🎉😊😊😊😊😊😊

[@DIYAA_04]

I like the way u teach. We need teacher like u ❤

[@falaqmansuri9573]

He is so under-rated! You are seriously too good of a teacher! If all teachers were like this everyone would score about 95%. Thank you so much for your work and dedication

[@devenderkumar8882]

Sir I just found u randomly and I'm glad I did😊 i feared maths but not after watching ur videos. My exams are about to start in 2 days, will surely comment my result. Thank u so much sir. I first Time had so much fun solving questions.... ❤Thank u so much😊😊

[@indusingh763]

All the best for exams dear

[@RewaSharma]

👍

[@obamajoemama]

what are ur results????

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​@@obamajoemama8l

[@immortalkiller2585]

@@obamajoemama asking for results in the internet in public 💀💀

[@parmodgoswami4650]

50:27 Therefore, The least which should be multiplied by 648 so as to get a perfect cube is 9

[@minSUS736]

9 is not a prime number

[@user-ju1lh5be8v]

Sir You brought My grades from B2 To A1 Thanks a lot

[@the_mafia_queen2204]

im an average 12th grader who's 11th was wasted and because of lockdown my 8th and 9th basics are not good enough, so im very weak at basic maths and physics (neet aspirant), but watching this sir teach, I have realised i've missed so much of academics and rakshak sir, ritik sir, every foundation faculty inspire me to never give up and always try to grab knowledge from anywhere possible, because of these faculties i have got up again with some courage this time to conquer physics like a pro, thank you so much pw team! 🙏

[@SumanKumari-dy2yc]

Sir, if you had come to our school, we would never have bored in maths class . You are so friendly. Your energy power ⚡⚡

[@moonandrockstar2806]

Sir, you are an amazing and hard working teacher . You explain concepts very clearly and re teach things that we forget.

[@xtraboyff1925]

I am addicted to this channel very nice and entertaining teachers this channel help Me to clear my so many doubt i am the topper of my class now because of PW thanks

[@user-md9pw2sm8r]

Sir ka chasama bahut cute hai❤❤

[@honeysolanki4290]

Thanks Tomorrow is my exam and I am ready from this chapter Bcz of u sir Thanks a lot Best teacher Best explanation method 👌

[@lostshub]

My mother loves how energitically sir teaches and the way i feel after watching sir's explation is like mathematics is very easy and enteresting 😀

[@laibanalfiya]

He make maths so easy for us 😊 his teaching method is so amazing 🥰

[@akhan9933]

I agree with you

[@swakshnarayangupta2139]

Tanik doubt hai ka

[@AshishKumar-ii2li]

No​@@swakshnarayangupta2139

[@JavedAnsari02]

Best math teacher in my life 👍👍👍👍 may God bless him 🙏🙏

[@meghapandey7250]

I am depressed about my chapter were completed. But I glad to have this video 🎉❤thank u sir🙏🏻

[@bindasgirl762]

I like the way u teach ❤ We need teachers like u in the school also❤

[@Towardsgoal09]

Hi

[@user-xm5ps4yr9n]

Hello you are looking so beautiful

[@yashpalsharma8355]

👍👍👍nice teaching by funny way .I love your teaching style.

[@pickonePoint]

Sir your teaching is Excellent 👍👍

[@Dreamflight55]

Your entry is very much funny 😂 and u r the best teacher in the world 🙂🙃

[@SahrishDeshmukh]

48:55 Sir answer is option (C) 216 216 is a perfect cube (6)3=216

[@NigamJyotiMallick]

6^3

[@mayathorat6621]

Sir you teach very well.. We all want this type of teachers in our school 🏫😊😊

[@Gaureeshashukla]

19:47 7 is the smallest number which should be multiplied to 1323 to make a perfect square

[@noobestking5907]

41:35 literally we can see how much efforts he putting in his lecture like see the sweat its drop is dropping though his head or face

[@Bdbhdjjjdhdj]

Sir your teaching is just amazing,, I always fear to do maths but I think now maths is my one and only my favorite subject... Thank you so much sir.. 🙏🏻

[@dudugudy3994]

Sir apka padhai karke me district mee 1 rank laya hun

[@user-yd1oz1nl3b]

​@@dudugudy3994yaar konsa district hai

[@anmreemarai6654]

Sir your teaching style is brilliant😎👍

[@rutbahassan_]

Sir very first class but every doubt cleared...much satisfying sir❣

[@AdityaJain132]

this guy has so much energy he can power dehli for a year

[@s.a.v.sgaming3876]

sir your way to teach is marvelous.

[@pushpitadas2381]

Thank you so much ❤❤❤sir etna ache se para ne kiliye 🙏🙏🙏

[@hutybherl1665]

Thanks sir, I scored 40/40 on my unit test . My parents are very proud

[@chhewangnorboo5056]

Jut mad bolo 🤮

[@sameertiwari3085]

Me to mera vi 40/40 aaya h friend

[@EatersTravel]

Wow😮😮😮

[@rajeshrajeshkumar9330]

Sir aap ki acting Jabardast hai 0:35

[@Jackwaagamerz4423]

Jabardast 0:56

[@mamtakhubchandani1446]

Sir you are very best ❤🤝

[@wrenchxgamer7152]

Option C is the perfect cube since i've learned the cubes from ur help❤

[@crazyhomegamersoffical]

Sir your teaching style is excellent

[@snehachotrani1407]

39:13 answer of 41³ will be 68921 through column method

[@AdityaSharma-lj4ik]

Amazing ❤❤

[@madhukarrathod3426]

Nice sir😊😊😊

[@noone.7228]

41 ka cube is 68921 39:15

[@pradipchaudhari719]

I want you as a teacher in my school ...😢 Because I am so weak in mathematics...😢🤗 Teacher like you makes mi better and good in mathematics 🥰🌹

[@gulzarahmadhydergulzar2579]

Ap boht acha padhata ho sir thanku❤

[@amanpandey2968]

Thank you sir ☺️ very nice lecture 😃

[@alshifa8165]

Thanku sir your teaching skills are awesome 👍🏻😀

[@pulkitsahu3773]

38:57 sir please a Jana apse padhne ma bahut maza ata ha 🥰

[@khushibhakar8245]

Take it easy he is in our neev batch also and Puniya sir bhi h for maths only 😁🙂

[@pulkitsahu3773]

@@khushibhakar8245 pura exam ho gya ??

[@khushibhakar8245]

@@pulkitsahu3773 nahi maths and hindi is left 16 tk ho jaenge complete.

[@pulkitsahu3773]

@@khushibhakar8245 sir ka izzat rakhna ha 😀

[@khushibhakar8245]

@@pulkitsahu3773 ya afcource ritik sir se padh kr m ganda score to kr hi nahi sakti .

[@Aditya_singh8553]

What an amazing starting 😄😄

[@purereverix_]

This man is not only born to make history But also born to make future of many students ...

[@amishanayak9383]

Sir your teaching is so nice.. I understand all.. Thank you so much sir.

[@SaritaDevi-xs1my]

Hii

[@user-gp5su6wc9v]

Thank you so much sir ❤

[@27xn]

Sir for the first time a Backbencher is intrested in maths 😳 Thanks for your guidance in maths . Just loved your teaching and energetic style with your entry 🧡💖

[@jeslymariswk4072]

[@ex_gaming668]

I'm too bro

[@sahni4404]

Thank you so much sir for super teaching 🙏

[@NarendraKumar-yh7fc]

7 is the smallest number that should be 1323 to make it a perfect square

[@mrcricketlover01x]

Perfect cube

[@khushibhakar8245]

02:38 thanks a lot sir aapne sabhi bacho ko mere or Pulkit se introduce karaya . 😍 Sir I remember jb mne first class li thi rational no. Wali I was nervous and excited . And 1st class m aapke bare m mujhe kuch nahi pta tha but ab hm sab is umang batch k last m aa chuke h to ab m aapke bare m bhot kuch janati hu . Like = you are the best teacher . Aapka nature bhot acha h . And u are not only our teacher but also our best friend Aap ki height = 6 feet 2 inches Aap ki age =23 Aapka weight = around 60 Year of birth =1998 Favourite colors = green and yellow And I am little bit sad coz Umagao batch is now ending Or ha sir aapne bilkul sahi liya mera naam😇😍🤗

[@pulkitsahu3773]

Pura bio pata ha apko toh Btw congratulations for shout out ✨

[@khushibhakar8245]

@@pulkitsahu3773 itne lecturer m sir n khud bataya tha . Isliye yaad h baki agar sir nahi bhi batate to m puch leti coz I want to know about our friend 😅😜

[@pulkitsahu3773]

@@khushibhakar8245 absolutely correct

[@umaizasohail7833]

Ab app log class 10th me ho ab app tu inse ni padhte hu so sad 😢

[@Ritika-zk4iy]

Thank you so much sir🥳 , You helped us a lot😁😁 . Tomorrow is my math's exam and your lecture helped me to solve all the sums 📖📃📒

[@devdeepak3178]

whaaat

[@vinodrana9392]

Soso

[@Smilli009]

Same sis

[@aisikatyagi7372]

hi ritik it's me aanya I am watching this too cool

[@lilith_2012]

Same but I have it day after tomorrow

[@whitetruth4422]

39:09 sir, 49³ by shortcut method=117,649

[@vandanasharma273]

Aree bhai sir ne (41)3 nikalne ko kaha tha (49)3 ka nhi

[@shakuntalanegi830]

Literally sir if you come in our school in the place of maths subject 🥰so, we never get bored❤😊💯💕🧐

[@learningclub3773]

Mujhe daily raat me padhte me need ati thi but today sir's lecture gave a new energy.really a fantastic way of explaining❤

[@muskanomar5913]

39:10 . cube of 41 is 68921 by short cut method . ( a + b )³ = a³ + 3a²b + 3qb² + b³ .

[@khushiKalyan-km2yy]

Yes

[@darshikasharma3484]

i just loved the lecture with full of enjoyment

[@5--7]

THE BEST SIR OF ALL TIME I ALWAYS GOT A BAD MATHS TEACHER BUT I THOUGHT NO ONE IS A GOOD MATHS TEACHER IN THIS WORLD BUT AFTER LOOKING AT U MYTH DESTROYED

[@pulkitsahu3773]

2:35 thank you sir for this ✨

[@architatiwari7052]

Sir aaphika name liya tha na. .... Congratulations 👏👏👏👏👏👏👏

[@pulkitsahu3773]

@@architatiwari7052 thank you 🥰

[@architatiwari7052]

@@pulkitsahu3773 ur welcome 🤗

[@Pushpathakur252]

Sir there is a question in my book which is from ch playing with number question is -----without performing actual add and division find the quotient when the sum of 73+37 is divided by 11 and 10 so how to solve this question

[@arpandwivedi3212]

first change it in generalised form then add both the generalised forms divide it by 11 you will find that answer is sum of digits

[@Rizo_editz1.0]

0:07 Pahele toh lga ye main kaha aagya😂😂😂

[@ManjuDwivedi-i7t]

Bhaiya ji app apne ghar pe he ho don't worry

[@ManjuDwivedi-i7t]

Bhaiya ji app apne ghar pe he ho don't worry

[@marsharasal1511]

Sir You Should Come To School Ur The Best Maths Teacher On Whole KZbin

[@shruhi4931]

This os the only teacher who can turn"i hate math "to "I love mathmatics"😊

[@suchetakalia7461]

The video was outstanding and filled with humour. The way you explain concepts to us is different yet amazing. Thank you sir for this amazing video.

[@unfairgaming3958]

Wah wah wah wah what a expaination😊😊😊😊

[@But_I-FoundJiminsLostJamz]

​@@unfairgaming3958*what an explaination (acche se grammer use kar bhai) 😂😂

[@mokshadaraul3]

Cube root of 4913 by estimation= 17...😊

[@bhavani1779]

Yes bro

[@devanshkhandelwal4747]

how bro my answer is coming 37

[@MuskanKhan-zq3on]

Sar exam mein 9 chapter a rahe hain bahut dar lag raha hai 😨😨