Understanding square roots | Pre-Algebra | Khan Academy

Understanding Square Roots

Missed the previous lesson?

Pre-Algebra on Khan Academy: No way, this isn't your run of the mill arithmetic. This is Pre-algebra. You're about to play with the professionals. Think of pre-algebra as a runway. You're the airplane and algebra is your sunny vacation destination. Without the runway you're not going anywhere. Seriously, the foundation for all higher mathematics is laid with many of the concepts that we will introduce to you here: negative numbers, absolute value, factors, multiples, decimals, and fractions to name a few. So buckle up and move your seat into the upright position. We're about to take off!

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[tristonfrost]

Wow this was so much easier to understand then in class

[dipro]

You just successfully thought me in 1 minute what 10 years of schooling couldn't!

[evening]

im so happy i find this channel cause im having a hard time understanding this cause i was absent for a week cause i was sick so yeah thx very very much for helping me

[dipro]

As funny as it is, its actually true! they did showed me all that and I did successfully answered questions about roots in exams and also got full marks out of em! But the concept was still a bit fuzzy to me this video actually made things alot better somehow! I am still a bit confused about negative roots though, maybe the internet will come to the rescue once again!

[mjierome]

Thx a lot man. This video really helped with my learning and understanding of square root. I didn't go to school for a year so I was behind a lot of my friends, and then the teacher gave us a maths test, and I did really bad, because I hadn't learnt how to do square root and other stuff.

[maxyx]

Can anybody please tell me the History of square roots? Who was the first guy that curious about it and wanted to find out what it was?

[fatimahamdani]

Can yu please make a video about HOW to find a square root? Thanks :)

[SACHINYADAV-hpjm]

Think this ....A digital revolution in flashes

[myName]

can you make a video explaining what a digital root is? thanks!

[sophiawilliams]

how do u find the squre root of 3 square root thingy then
27

[Duqawnjohnson]

lmao omg thank you!!! i miss the day in class when this was being explained and now i have a test with this and couldn't find someone to explain it very well but you just saved my ass!!!

[souravpathania]

What is the whole square root of whole square of -5?

[emezoleadikema]

i will never need this in my life after college

[gBORG_]

Fantastic video. Really good job. I love it. Go math!

[koolyoh]

your back men, i miss ur virtual class tnx

[Aelfraed]

Either by approximation or calculator.

[vaellosom]

i need a negative square root how to video

[Ziyana]

I used to memorize all the sqare roots of numbers from 1-20 but now I forget the ones from 13-19 xd

[shanetavitomsky]

No no no I need hard stuff this is easy I NEED SQUARE ROOTS THAT YOU CAN'T GRT WITH A COUNT OF 1..2..3 I need hard stuff like the square root of 1, 433 or even 33 -.-

[staceyvillegas]

Thank you so much it help me a lot 😻😻😻😼