Percentage made easy - Five percentage tricks and shortcuts

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  • Опубліковано 11 чер 2020
  • Percentage made easy! These five tricks for percentage calculation include working out percentage mentally, percentage increase and decrease and other percentage tricks and shortcuts.
    To donate to the tecmath channel:paypal.me/tecmath
    To support tecmath on Patreon: / tecmath
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КОМЕНТАРІ • 513

  • @andycopeland7051
    @andycopeland7051 3 роки тому +43

    You can hear a smile in his voice, it makes it so fun. Man thanks for making these!

  • @THEJR-of5tf
    @THEJR-of5tf 3 роки тому +43

    I am 72 years old. I was never great at maths. I learned enough to get buy. Finding these videos has awakened my interest. Thank you

  • @donjaeb
    @donjaeb 4 роки тому +468

    If your reading this you have test coming up and we are going to pass thanks to Tec

    • @tecmath
      @tecmath  4 роки тому +75

      You'll pass thanks to yourself!

    • @tpose8280
      @tpose8280 3 роки тому +4

      yeah

    • @lana-fr1yo
      @lana-fr1yo 3 роки тому +4

      @@tpose8280 nope

    • @tpose8280
      @tpose8280 3 роки тому +4

      @@lana-fr1yo no u

    • @clickflick8958
      @clickflick8958 3 роки тому +4

      Yeah I have a test to enter my new school haha

  • @dagored4077
    @dagored4077 3 роки тому +57

    Every day is a school day! I'm 69 and hated maths at school, come to think of it I hated school. It's never too late to learn. Cheers.

    • @Grejegando
      @Grejegando 3 роки тому +2

      I can totally relate. I'm 43 and I never liked school. Incompetent teachers, useless subjects rarely anyone has interest in, and the lack of practical applications/experiments to spark interest in a given subject. I believe I'm a lot more intelligent today than I was back then. I never liked history, geography, or biology, but have tons of interest in psychology, quantum physics, and astrology. Chemistry, on the other hand, seemed like rocket science back then, however, I self-studied parts of it 5 years ago and found it to be fairly simple. It's amazing how the education system isn't really educating most of us, but seems to be more about discipline, obedience, and following rules. It's more of a brain-conditioning institution than anything else. Creativity has no room there, memorization is celebrated and rewarded, just as if that's what Tesla and Einstein did.

    • @michelleisabella9991
      @michelleisabella9991 3 роки тому +1

      lol 69

    • @dagored4077
      @dagored4077 3 роки тому

      @@michelleisabella9991 it's true, though 1952 was a good vintage 👌

    • @dagored4077
      @dagored4077 2 роки тому

      @Ludykins almost as good as 96. That's 69 after an argument 😉

  • @asrarmasud712
    @asrarmasud712 3 роки тому +59

    You are a good teacher. When showing others what I learned, I tell them my teacher taught me this method.

    • @prod.6ixx
      @prod.6ixx 2 роки тому +6

      He not good
      He perfect

  • @mikemartin3877
    @mikemartin3877 3 роки тому +57

    Always loved my maths, and at 75 I'm still learning, especially from you. Thanks it's great

    • @nicolerabbath8591
      @nicolerabbath8591 Рік тому +1

      thats amazing! May God bless you! Give Him your heart and your life, accept the Lord Jesus as your Lord and savior, He is always there for us.!:)

    • @rishabhfalke4652
      @rishabhfalke4652 Рік тому

      Wow❤️❤️

    • @khaivvo
      @khaivvo Рік тому

      @@nicolerabbath8591 Stop preaching. No one wants to hear it.

  • @AkaTonbo_2569
    @AkaTonbo_2569 3 роки тому +24

    Josh - for the past two days I have watched your many math vids and refreshed my memory of fractions and percentages. Your brilliant way of teaching is super helpful, esp if you haven't been to school in a while - HIGHLY RECOMMEND your vids over the others. THX

  • @andytjr
    @andytjr 4 роки тому +195

    This man's voice makes math so welcoming lol

    • @ColbyEasterling
      @ColbyEasterling 3 роки тому +8

      he makes math a comfy bedtime story

    • @2young2dumb25
      @2young2dumb25 3 роки тому +2

      Ikr

    • @bw3747
      @bw3747 3 роки тому

      It's called sexy as..

    • @justayoutuber1906
      @justayoutuber1906 3 роки тому

      It's Jeremy Clarkson from Top Gear

    • @stevethea5250
      @stevethea5250 3 роки тому +1

      @@ColbyEasterling i cant tell if he is using voice changer or not lol

  • @lindagojak5409
    @lindagojak5409 3 роки тому +4

    I love this... it is not really about tricks but about mathematical reasoning... Good for you!
    .

  • @franceslock1662
    @franceslock1662 4 роки тому +36

    I like your teaching style, fun and accessible for young children.

  • @mzmishel7953
    @mzmishel7953 3 роки тому +7

    Where were you when I was learning math!?! I always paid attention but always struggled. Thanks so much for this teaching ! At 51yo I have a real desire to go back and learn these basics for myself! Glad to have found you!🙏❤️

  • @Cyber_skull_-Gaming
    @Cyber_skull_-Gaming 4 роки тому +17

    Keep the maths coming, you make me enjoy maths rather than hate it.

  • @jamesdavies2739
    @jamesdavies2739 4 роки тому +93

    I’m a teacher and I do teach this. Oddly enough some parents will blame me for teaching “common core math” when I show number sense strategies like this.

    • @tecmath
      @tecmath  4 роки тому +25

      Awesome James. I got taught to follow the formula, and this unfortunately is all too common. Thanks for teaching and thanks for watching.

    • @O-ShinSpringsWater
      @O-ShinSpringsWater 3 роки тому +3

      Study your basic add, subtract, fractions, multiple, ➗, protractor, triangle scale rule, standard ruler and metric system ruler, if school offer carpentry classes to learn how to make 25° angel to 45° angel. Carpentry wood work classes is harder than I thought it would be DC average grade was good enough for me. Lol

    • @phlotographer
      @phlotographer 3 роки тому +7

      @@O-ShinSpringsWater and be sure to go to English class to learn that an "angel" is not an "angle" but you do know that for every girl that has the curves (some would call her an angel) there is a guy that has the angles.

    • @april147
      @april147 3 роки тому +2

      @@O-ShinSpringsWater click the vertical 3 dot at the end of comment and select edit. That should do the trick.

    • @katieward7181
      @katieward7181 3 роки тому

      That is very good and i want to be a teacher and teach the teenagers things you didn't know about school and how to educate yourself and parenting and tricks you didnt learn in school i want to be a secondary school teacher or year 7 teacher

  • @darlenedaughtersmommyville3710
    @darlenedaughtersmommyville3710 3 роки тому +4

    This is excellent! I am a homeschool mom and struggling to teach math “clues and tricks “. These are great. Thank you

  • @nelsonthibeau2050
    @nelsonthibeau2050 3 роки тому +2

    I learned this in a public school in the 70s, these videos are the greatest

    • @bearbear4030
      @bearbear4030 3 роки тому

      It’s not the same today! They use all kinds of weird funky models and make it impossible for parents to understand. SMH 🤦‍♀️

    • @martheseturner995
      @martheseturner995 3 роки тому

      So did I

  • @peterpeterson125
    @peterpeterson125 3 роки тому +4

    this is the number 1 best youtube channel created, i actually have a chance of passing my math test!

  • @philrichmond7567
    @philrichmond7567 4 роки тому +14

    Wish they taught me that at school. You've simplified this for me. Cheers fella. Thumbs up ☝

  • @dr0e7x
    @dr0e7x 4 роки тому +72

    Im here cause at 31 i suck at math and im ashamed of it.. So im trying to learn abit. Lol

    • @VirtuellJo
      @VirtuellJo 3 роки тому +16

      dr0e7x Hey, you ar trying to learn, That is something to be proud of.

    • @scottlondon8382
      @scottlondon8382 3 роки тому +6

      Lol im 31 and trying to pass my next test to get into the army

    • @itemps
      @itemps 3 роки тому +2

      @@scottlondon8382 same lmaoo

    • @itemps
      @itemps 3 роки тому +2

      I passed and got mos 😌

    • @scottlondon8382
      @scottlondon8382 3 роки тому

      @@itemps mos whats that

  • @tonyjohnson9889
    @tonyjohnson9889 3 роки тому +1

    You are amazing and your sunny vocal disposition makes learning this a mandatory pleasure. Thanks!

  • @stefaniekuhnhausen2733
    @stefaniekuhnhausen2733 4 роки тому +9

    They need to teach it this way at school. This was how I learned percentage
    when I was in elementary school in Vietnam!

    • @tecmath
      @tecmath  4 роки тому +3

      Awesome. We never did get taught this way - just follow the formula!

    • @renisawilliams7504
      @renisawilliams7504 2 роки тому

      They teach us a different way bur way easier and shorter

  • @debbieleatherbery4118
    @debbieleatherbery4118 2 роки тому +5

    Thank you for this channel, I have always let math defeat me!
    At 56 I decided I am going to learn how to do it even if it's the last thing I do!

  • @equinox6944
    @equinox6944 3 роки тому +1

    This channel is a little gem that I have just stumbled upon. Thankyou so very much for sharing all this

  • @liamdillon9465
    @liamdillon9465 Рік тому

    You are literally the best, I wish my teachers in school had been like you

  • @rosyrussell5209
    @rosyrussell5209 2 роки тому

    Brilliant. One child is dyslexic. So teaching these easy methods to both kids. They are so good. Why make it difficult when it can be easy!

  • @lilachiricli6756
    @lilachiricli6756 4 роки тому +16

    WOW! Finally at age 50+ 😂 How is it that I learnt how to do this in minutes, when I spent years at school struggling and still didn't grasp it 😁 Thank you. Ok, just gonna give my Maths teacher sister in law the heads up 😉

    • @sonny3703
      @sonny3703 3 роки тому

      Lol ok boomer

    • @lilachiricli6756
      @lilachiricli6756 3 роки тому +3

      @@sonny3703 😆 Get off my lawn 😂

    • @llb9605
      @llb9605 3 роки тому +1

      Because not all teachers are good at teaching, especially not teachers with a fixed mindset.

    • @lilachiricli6756
      @lilachiricli6756 3 роки тому

      @@llb9605 Exactly 😉 may also have something to do with preferring to watch paint dry than do maths 😂

    • @lilachiricli6756
      @lilachiricli6756 2 роки тому

      @Dark side of the force Wow! They should try freediving instead 😄

  • @sockbadger7287
    @sockbadger7287 4 роки тому +1

    Once again Josh you have given us a 100% brilliant lesson. Many thanks.

  • @fionayarr9243
    @fionayarr9243 2 роки тому +1

    This is my favorite video ever now. I’m 31 and never learned these tricks until this video 😭 I really think the school system just hated their students

  • @RaivoltG
    @RaivoltG 3 роки тому

    These are some of the best videos I've ever seen! They are totally practical and easy one you get the hang of it! I'm going to be watching all of your videos! Great job, thank you very much!

  • @shivamk2025
    @shivamk2025 4 роки тому +1

    LOVE LOVE LOVE! Thank you so much for this!

  • @mcatability4804
    @mcatability4804 3 роки тому +5

    This is an amazing video! I love all your math tricks. Studying for the MCAT right now. I honestly feel so dumb that I didn't recognize this myself with all the math studying I've been doing! I wish you were my teacher in highschool - ours were not so great.

  • @Rhynni
    @Rhynni 3 роки тому

    Thank you for explaining these tricks! No more digging out the phone/calculator and spending ages trying to work math out the long way!

  • @FunkatronicGeek
    @FunkatronicGeek 3 роки тому +6

    Tip 3 never occurred to me but makes so much sense, since percentages are basically an extension of multiplication and division if you think about it

  • @tarniyabaker920
    @tarniyabaker920 Рік тому

    Thank you! I'm 30 years old and just worked out how to do percentages PROPERLY. I never understood it and just pretended I did because after asking the teacher for the 3rd time they thought you were stupid and stopped trying

  • @bobmarley6161
    @bobmarley6161 4 роки тому +2

    Fantastic as always.... Seriously much better than any school methods

  • @dorischoo
    @dorischoo 2 роки тому +1

    Love this calculation doesn’t heard my head, so is good 👍

  • @cara4265
    @cara4265 4 роки тому +2

    Thank you so much!!
    I'm really happy to know this!!

  • @rimasdiaa7181
    @rimasdiaa7181 3 роки тому +1

    I just took probability and decided to get ahead of school, I never knew how to calculate percentages now I can do it no prob! thank you for the amazing video

  • @TTAG01
    @TTAG01 2 роки тому

    Fantastic summaries. Very helpful my man, thank you 👍🏽

  • @sineadocean6716
    @sineadocean6716 2 роки тому

    Honestly you’ve made me interested in learning math for the first time in my life. Thanks a ton!!

  • @grantc.7782
    @grantc.7782 4 роки тому +5

    Love these videos and little tricks. I just wish that they were around when I was in school. Woud have made things a lot easier.

  • @vicentepallamare2608
    @vicentepallamare2608 3 роки тому

    Been using this simple trick for ages. Awesome stuff

  • @teredn3362
    @teredn3362 3 роки тому +1

    You are a brilliant maths teacher....and your voice makes Maths just that little bit more enjoyable. Please keep these videos coming 🙂

  • @ianmitchell9102
    @ianmitchell9102 3 роки тому +2

    Never knew about reversing the %, 32 to 50 example, great trick 👍🏻

  • @mentalraystudios766
    @mentalraystudios766 4 роки тому +2

    Math god I happy that I found you sir. My 5 years of high school never thought me this. Thank you so much sir.

  • @Eyes-of-Horus
    @Eyes-of-Horus 3 роки тому +4

    Several years back in one of my classes one of the students was lamenting that it was difficult to learn math. I began explaining the construction of math textbooks. While I was discussing this a math major was nodding in approval all the while. Suffice it to say that math textbooks are not constructed is a sequential pattern. I read of a math teacher in Texas who wrote a textbook in a sequential order (Chapter 1 presented a concept; chapter 2 expanded on it; chapter 3 completed the discussion). Thing is, he couldn't get the book published. Why? Math teachers don't teach in that order. They don't teach these tricks because they never learned them because of the way they were taught. This disjointed pattern naturally restricts finding little tricks that make learning math easier.

  • @jcelynn
    @jcelynn 3 роки тому

    thank you so much, i have an exam coming up and this really did help me. your videos are great tecmath!!

  • @bernadettevm845
    @bernadettevm845 3 роки тому

    👏👏👏👏 been watching some of the vids now and i find it very helpful... thank you.

  • @SubsonicsBeatboxTutorials
    @SubsonicsBeatboxTutorials 4 роки тому +2

    Brilliant video :) excellently explained :)

  • @seaskysun1
    @seaskysun1 Рік тому

    love your videos and very useful, please them coming

  • @Eden519
    @Eden519 3 роки тому

    really great tricks. thanks so much!

  • @kosmosilo2919
    @kosmosilo2919 2 роки тому

    absolutely love this channel

  • @sheepleslayer586
    @sheepleslayer586 2 роки тому

    Very helpful. Appreciate the tips and tricks.

  • @dshe8637
    @dshe8637 3 роки тому

    Love these. Thank you

  • @vernonalvares8440
    @vernonalvares8440 3 роки тому +1

    Brilliant.. hetting my 2 daugjters tobwork on these tricks uve conceptualized.. love ur vids.. vheers, Vernon Alvares, Mumbai India

  • @anastasia8341
    @anastasia8341 4 роки тому

    Wow! So simple, thank you for your help.

  • @in-quisitive.6883
    @in-quisitive.6883 Рік тому

    Thank you, really helpful and well presented.

  • @Pablito46
    @Pablito46 3 роки тому

    You're videos are awesome! Thanks!

  • @lowc-ops2038
    @lowc-ops2038 4 роки тому +1

    Very helpful, thank you!

  • @prajnasmitaswain3170
    @prajnasmitaswain3170 4 роки тому +9

    1st Viewer here, Nice video!
    This dude should be my Math Teacher!!!!!!
    Thanks man, helped me with normal percentage problem :D
    Edit: Thanks tecmath for the like and reply!

    • @tecmath
      @tecmath  4 роки тому +2

      Welcome! Stay good!

  • @hosamfikry2924
    @hosamfikry2924 2 роки тому

    G'day mate! You are a legend 👌🏽I need advanced math in my career, but your videos are rewiring my brain when it comes to basics. Thank you!

  • @27monsan
    @27monsan 3 роки тому

    Very fun and informative...thanks!!!

  • @ThatsTypical
    @ThatsTypical 2 роки тому

    thank you for the tricks as always, helps out a lot

  • @AndWeHaveRisen
    @AndWeHaveRisen 4 місяці тому

    Okay, first of all: you are so quick and to the point and the tricks are very cool too, but I gotta say; I am *totally* staying even more for your personality 😦😆💕 You are SO much fun and you sound like an awesome person!! Thanks teach- keep 'em coming! :]

  • @trelligan42
    @trelligan42 4 роки тому +4

    Very good presentation of a commonly confusing topic.

  • @rogeralleyne9257
    @rogeralleyne9257 3 роки тому +1

    Great video lesson!!!

  • @stopdropandgame9506
    @stopdropandgame9506 3 роки тому +2

    bro thank you people are acting like you learn this in school and are shocked maybe i did but i only was taught it once

  • @chocoboasylum
    @chocoboasylum 3 роки тому +1

    I love these videos. I've always considered myself bad at math but these videos show I just didn't have the right methods

  • @joshuaperry4112
    @joshuaperry4112 2 роки тому +2

    With values closer to common numbers; 50%,75%, etc. It's easier to start with that value and work down.
    So, for example. 45% of 22. Well, 50% is 11. therefor 5% is 1/10 of that, or 1.1 . So 11-1.1=9.9
    A harder example: 21.4% of 49. OK, so 20% is double 10% - so 4.9x2= 9.8 (if you can't do that, then 2x5=10, subtract .2)
    1% is 1/10 of 10%, so it's 4.9/10, or .49.
    .4% is 4/10 of 1%, or 4x1/10 of 1%. so .049, double is .098, double that is .196.
    9.800+.490+.196=10.486
    Break the number into figures that are easier for you: maybe you do 21.5% and take .1% out, or maybe 22% and take .6 out.

  • @nadines6344
    @nadines6344 4 роки тому +2

    Amazing!!! Thank you 😊

  • @gsentertainment8604
    @gsentertainment8604 4 роки тому +133

    Why don't they teach this in school?
    Because they know students are gonna come to learn from your channel anyway.

    • @Eyes-of-Horus
      @Eyes-of-Horus 3 роки тому +5

      The math teachers weren't taught this way. So, that is not how they teach it.

    • @paulrounding5260
      @paulrounding5260 3 роки тому +3

      I was taught myself this way 50 odd years ago, no tinternet then.

    • @phlotographer
      @phlotographer 3 роки тому +2

      @@paulrounding5260 learned to do this before grade five which was over 65 years ago. I do my restaurant bills that have HST of 13% all the time by using 15% and subtracting 2%. For the tip -- 15% of the cost of the restaurant prior to the HST. Oh, another way of doing the 15 x 13 --- memorize that 15 squared is 225 and then subtract 2 of the 15's or 30 and one is back to 195. Another useful square is 25 squared = 625. I used to know a lot more squares but did not find them useful very often so the HDD in my head became full and I had to uninstall some things and they were the first to go. The worst thing is that many math puzzles totally stump me but arithmetic is decent.

    • @russtorque2993
      @russtorque2993 3 роки тому

      Because teachers of schools don't really know this concept themselves. This concept may have been invented in the later years

    • @johnjacobjinglehimerschmid3555
      @johnjacobjinglehimerschmid3555 3 роки тому

      You can't teach thinking.
      Just need to teach them how to do the math .... then the student needs to put forth effort in the gray matter.

  • @flamencoaustralia.9287
    @flamencoaustralia.9287 3 роки тому

    The best voice for teaching. Thx

  • @dorupero
    @dorupero 3 роки тому

    Here I am doing spreadsheets and this comes up on recommended. This saved me a lot of time in the future I think.

  • @akhileshas1467
    @akhileshas1467 2 роки тому

    Thank you tech! That was something unexpected!

  • @cpotharst3059
    @cpotharst3059 3 роки тому

    Fantastic. Thank you.

  • @powerofroses1670
    @powerofroses1670 4 роки тому

    I like to read and learn new stuff. Thank you?! This was excellent. I need to brush up on my math skills.

  • @Letsroll000
    @Letsroll000 Рік тому

    I appreciate your channel always interesting to learn new tricks.

  • @kennethgracia2876
    @kennethgracia2876 3 роки тому

    Thanks for your trick. It was more than what they taught it school

  • @diamondingot9841
    @diamondingot9841 3 роки тому +1

    This is explained it way better than my teacher

  • @maradasivankh6813
    @maradasivankh6813 Рік тому

    I wish I saw this video when I was back in school! Thanks for the cool tricks

  • @dorisjimison7590
    @dorisjimison7590 2 роки тому

    Love this!!!

  • @tenmiltenmil1770
    @tenmiltenmil1770 2 роки тому

    Tuesday August 24th 2021
    I have to watch several of your videos again because don’t understand some of this vital and valuable information ! Thank you ! New subscriber ! ❤️❤️❤️👍👍👍♥️♥️♥️🌺🌺🌺🌹🌹🌹🌷🌷🌷😊😊😊

  • @djmeowuwu9638
    @djmeowuwu9638 3 роки тому

    I hope I pass my test tomorrow Thank you so much for posting this video

  • @tolujic
    @tolujic 3 роки тому

    good stuff keep them coming

  • @thepeartsfamilytv
    @thepeartsfamilytv 3 роки тому

    You are a God sent I love your videos..Thank you

  • @TaniaJane-yg2gj
    @TaniaJane-yg2gj 4 роки тому +1

    Brilliant tips ..thank you 🙏

  • @drpainnuk3d
    @drpainnuk3d 3 роки тому

    So simple thanks!

  • @romerocottler8671
    @romerocottler8671 3 роки тому

    This is the best teacher I also subscribed thanks a lot

  • @davidadewumi619
    @davidadewumi619 4 роки тому +5

    Just brilliant... The way you make the maths so much easier with a voice to match... Just Brilliant!!!

    • @tecmath
      @tecmath  4 роки тому +3

      Thanks Dave.

  • @turkeytrac1
    @turkeytrac1 4 роки тому +2

    Best tips ever!!

  • @resurgensix
    @resurgensix 3 роки тому +1

    Thanks to t=cm@th I aced the math portion of my entrance exam for my HVAC Union. At 53 I had not studied math in 35 yrs. Now I will be getting my full tuition paid for = $20k per year.

  • @apeterson23
    @apeterson23 3 роки тому

    Wow nice. Helped alot

  • @Kris10f
    @Kris10f 3 роки тому +8

    When u said "so sit back and enjoy" i sat back with my feet propped up in a chair watching the video while eating a doughnut

  • @shoppersdream
    @shoppersdream 3 роки тому

    Very Nice! Thanks

  • @Princessdalya-vn8rm
    @Princessdalya-vn8rm 3 місяці тому

    You explain it so easily thank you so much

  • @SkiF13
    @SkiF13 3 роки тому

    Big thanks!!

  • @gameitall9527
    @gameitall9527 3 роки тому

    Thank you so much tecmath now I know a easy fast way to do this and I passed on my school practie test just because of this video thank you so much and for that I got a new 💻 mac book pro and a iphone 📱 12 from my parents

  • @lifechangertutorial
    @lifechangertutorial 4 роки тому

    I really love your videos. hope to be like u. I'm working on that already. thanks

  • @tomsis3825
    @tomsis3825 4 роки тому +1

    I love your videos! and yes I do teach this in school using 10%. Also with decimals first then integers. Really good stuff!

    • @tecmath
      @tecmath  4 роки тому

      Awesome! Thanks for watching.

  • @juliepearlcabingas2506
    @juliepearlcabingas2506 3 роки тому

    Interesting topic. And thank you for sharing your knowledge sir.

  • @ntsikisithole
    @ntsikisithole 2 роки тому

    thank you so much this was so easy.