了解如何找到平方根的近似值。该视频中使用的示例是√32,√55和√123。所使用的技术是将整数的平方与我们要求平方根的数字进行比较。
立即在KhanAcademy.org上自己练习本课程:
https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-numbers-operations/cc-8th-approximating-irrational-numbers/e/square_roots_2?utm_source=YT&utm_medium=Desc&utm_campaign=8thgrade
观看下一课:https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-numbers-operations/cc-8th-approximating-irrational-numbers/v/sorting-irrational-numbers -involving-radicals?utm_source = YT&utm_medium = Desc&utm_campaign = 8年级
错过了上一课?
https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-numbers-operations/cc-8th-irrational-numbers/v/categorizing-numbers?utm_source=YT&utm_medium=Desc&utm_campaign=8thgrade
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8th grade? Man I'm learning this in grade 7 ?
ғᴏʀ ᴇx ᴡʜᴀᴛ ᴅᴏ ɪ ᴅᴏ ᴡʜᴇɴ ɪᴛ's -2, sǫᴜᴀʀᴇ ʀᴏᴏᴛ ᴏғ ᴇʟᴇᴠᴇɴ ᴊᴜsᴛ ᴀsᴋɪɴɢ sɪɴᴄᴇ ɪ ᴀʟᴡᴀʏs ғᴏʀɢᴇᴛ
This is more complicated look for other videos
I have a quiz on Friday for this.. you saved me again ?. Thanks so much!! I subscribed
I don’t get anything!?
Thank you
The denominator will always be 2N +1, with N been the closest square root to the number you are trying to figure out
Tysm. I have exams tomorrow and I understand this better than when my teacher shows me.
who else is here cuz test
132?
where did you get the 5 and the 6 from 1:09 seconds ?
Tysm! I hope I will make a decent grade on my test!
Thank you so much! Have a nice day everyone =D
how do we work out the decimal?!
Yeah, my teacher for this lesson said here's your calculators now find it.
I'm in a advanced class learning this in 7°
THANKS TO YOU I GOT AN 80 ON MY PREVIOUS MATH TEST AND THE CONCEPT WAS SO HARD AND YOU ALSO HELPED ME WITH THIS! THANK YOU SO MUCH! YOU DESERVE MORE THAN 4.3 MILLION SUBSCRIBERS! 😀
Thank you so much sir…. It helped me a lot ??????????
Omg thank you. I get it much better now!???
Thanks mrs.hill, thanks
i freaking hate math omg its so fustrating
Thanks for this video!
how do I write it in decimal????
Thank u so much it takes a long time to find a good video