How to work out percentages without a calculator Part 1.wmv
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All Comments (62)
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Thanks for the video! It's awesome.
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Thank you just helped me prepare for a test next week.
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This is awesome! :) Thank you so much.
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Thank you so much for the help! I'm also British, so it was nice to work out a sum in pounds which I'm far more familiar with than dollars! I wish you were my maths teacher!!
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thank you very much this video really helped me :)
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@maths520 You're great at explaining, good job thank u so much :)
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how do you work out like the percentage discount of $75 reduced to $67.50
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when i was in italy the teacher did not teach me the traditional method but she made me learn this method. i am soooo lucky now.
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What would be the price of a 28,000 car there converted into US dollars.
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your so good
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What about 8% of 53.46??
missSamiiii 3 months ago
@missSamiiii Get 1% first by dividing by 100 so 53.46 divided by 100 = 0.5346. As this is 1%, you now need to times by 8. One way of doing this is to double it, double it again and then double it one more time (x2, x4 x8).
maths520 3 months ago 2
i had never been able to do this before in my life cus the teachers are so rubish at explaining it, but u made it s clear to understand, cus u dont rush through it, good job!
millmill02 6 months ago
@millmill02
Thank you.
maths520 6 months ago
you're a great teacher and all... and i understood it clearly... but let's say i'm in a restaurant and i'm tipping the waiter 15% of my bill? i need to do it fast of course, why can't i just get a tissue paper and pen then have 840 divided by .15? that'll be faster don't you think? best of all, i didn't use a calculator.
iSh0uldBeStudying 11 months ago
@iSh0uldBeStudying
You need to make sure you MULTIPLY by the 0.15 rather than divide otherwise you'll give a 5600 tip!
maths520 11 months ago 7