Square ANY number up to 1000 in 5 seconds - math trick!
1,237,368
Published 2020-08-06
How fast? Some can be done instantly - others will take up to 5 seconds - as you can see in the thumbnail.
For this math technique you will square each of the digits then add them to the digits multiplied by themselves and 2...all really easy calculations.
This trick is based in Vedic math - an Indian system of mathematics.
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All Comments (21)
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I am a math teacher from Egypt, and I and my pupils benefited from your methods of explaining mathematics and I would like to thank you a lot
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It took me a solid three minutes to realise that this is basically (a+b)^2 = a^2 + 2ab + b^2. A very creative way (and yet simple) of applying this.
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Didn't realize the thing i needed in life was an Aussie man showing satisfying math hacks
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He sounds like he's always on the verge of laughing
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I love how excited and proud he sounds.
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Imagine this guy is your math teacher how much better would this be .
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You consistently blow my mind mate. Mathematics is such a beautiful subject and I find this so appealing. Thank you for all you do
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Thank you so much for breaking this down gently and positively. I love mental math and your channel is really fun.
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It’s ridiculous how much this channel improved my mental math in so little time
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I am 70 years old and grew up loving math and doing math games and quizzes with my father. I miss math class. These problems had me smiling and getting them right...”Come on! Give us another one!” 😊 Thanks! BTW, I’m in South Carolina, USA
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Very useful video, This method would have never crossed my mind in a million years and I would have been stuck doing it the hard way in my finals, But now I'm armed with an easy and surprisingly fun method. Thank you a lot
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Im 10½ and i know every square up to 1000, it just took me time to tell someone wuick when they asked. This helped improve my speed!
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Those who say "I can't do math" has never seen these alternate techniques. Not only are they efficient but a lot of fun to play around with. Wish schools taught this. Even if it's after learning the basic fundamentals first.
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You are the Mister Rogers of math, Josh! Thank you for your gracious style and clear instruction. It is a genuine pleasure to listen to your lessons. I have learned so much from you. I have suffered for decades with math anxiety to the point of mental paralysis. Thanks to your teaching vids, I'm doing math in my head quickly and accurately. I appreciate the many new ways of thinking about numbers and mathematical operations that you bring to the table. Keep up the great work!
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I love your positivity, it makes it so much more fun to learn math concepts!
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Hi Josh. Just wanted to say a big thanks for your vids. My son and I love the clear, simple explanations that make maths so much easier. 👍. Matt
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I love your videos, now I see why I had a rough time with math all these years. Even though I scored A's in Science, Health, History, English, Social Studies et. al.
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Not only can you extend this to any number of digits, but the 3rd power stuff, while not likely something you can work out manually, is very interesting. It basically adds another thing to multiply in each of the steps: the number you are trying to square with various digits 0'd out. Unique to 3rd powers. For example, say you wanted to calculate 84345458^3 using this method. The second step in the other method has you multiply digits 1 and 3, 8*3 here. Then you need to multiply that by 80345458 and then finally multiply all that by 3, instead of 2. The 0's in the number are always the digit/digits you skip over in each step. This 80345458 number is completely absent in 2nd powers.
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Great. Will keep practicing mental calculations. This greatly simplifies squares, yet still aiming at 1 min for 3-digit ones. Awesome practice. Thank you.
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You truly have a gift for teaching and numbers... A very rare combo mate!! 👍