Introduction To Square Roots | Numbers And Operations | 8th Grade | Khan Academy


Learn about the square root symbol (the principal root) and what it means to find a square root. Also learn how to solve simple square root equations.

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8th grade on Khan Academy: 8th grade is all about tackling the meat of algebra and getting exposure to some of the foundational concepts in geometry. If you get this stuff (and you should because you’re incredibly persistent), the rest of your life will be easy. Okay, maybe not your whole life, but at least your mathematical life. Seriously, if you really get the equations and functions stuff we cover here, most of high school will feel intuitive, even relaxing. (Content was selected for this grade level based on a typical curriculum in the United States.)

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33 thoughts

  1. What I’m confused it says 8th maths and I’m in year6 and I’m learning this at school

  2. Dear Khan Academy, can you also solve the power to the number and base number ASAP. Plz. Thank you so much big help.

  3. (-3)2 = +9 because if we do it like this: -3x-3= +9 here, integers are being used and as minus + minus = plus , so the ans will that’s why be positive, right?

  4. Thank you very much for providing us such videos for free.The whole Khan Academy professionals are the owners of great hearts

  5. I am I 6th grader and I’m doing 7th grade in the summer so I can be in 8th grade next year so I am practicing my 7th grade math so I will know what they’re telling me and you really made it easier who knew square roots where so easy

  6. I have a question. So, the number has to be pacific to work in the square root? By that I mean, so you can only have numbers that have equal multiples, and not just random numbers?

  7. Wait what? This is 8th grade!?? Omg, ugh. I’m in excelled math which is more than regular and advanced and my MATH TEACHER IS TEACHING ME THIS IM ONLY,IN 6th GRADE :///

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