Percentage made easy - Five percentage tricks and shortcuts
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- Опубликовано: 2 окт 2024
- Percentage made easy! These five tricks for percentage calculation include working out percentage mentally, percentage increase and decrease and other percentage tricks and shortcuts.
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If your reading this you have test coming up and we are going to pass thanks to Tec
You'll pass thanks to yourself!
yeah
@@tpose8280 nope
@@lana-fr1yo no u
Yeah I have a test to enter my new school haha
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.
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.
lol 69
@@michelleisabella9991 it's true, though 1952 was a good vintage 👌
@Ludykins almost as good as 96. That's 69 after an argument 😉
You are very dirty minded bro@@michelleisabella9991
You are a good teacher. When showing others what I learned, I tell them my teacher taught me this method.
He not good
He perfect
You can hear a smile in his voice, it makes it so fun. Man thanks for making these!
Always loved my maths, and at 75 I'm still learning, especially from you. Thanks it's great
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.!:)
Wow❤️❤️
@@nicolerabbath8591 Stop preaching. No one wants to hear it.
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!
I learned this in a public school in the 70s, these videos are the greatest
It’s not the same today! They use all kinds of weird funky models and make it impossible for parents to understand. SMH 🤦♀️
So did I
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
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! :]
Very good presentation of a commonly confusing topic.
Thanks
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!
Welcome! Stay good!
I like your teaching style, fun and accessible for young children.
Thanks
Love this calculation doesn’t heard my head, so is good 👍
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
Math god I happy that I found you sir. My 5 years of high school never thought me this. Thank you so much sir.
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
Here I am doing spreadsheets and this comes up on recommended. This saved me a lot of time in the future I think.
This is the best teacher I also subscribed thanks a lot
This man's voice makes math so welcoming lol
he makes math a comfy bedtime story
Ikr
It's called sexy as..
It's Jeremy Clarkson from Top Gear
@@ColbyEasterling i cant tell if he is using voice changer or not lol
Im here cause at 31 i suck at math and im ashamed of it.. So im trying to learn abit. Lol
dr0e7x Hey, you ar trying to learn, That is something to be proud of.
Lol im 31 and trying to pass my next test to get into the army
@@scottlondon8382 same lmaoo
I passed and got mos 😌
@@itemps mos whats that
ADHD, 42 years old and learning math for the first time! Thank you!❤
Very helpful. Appreciate the tips and tricks.
Thank you, really helpful and well presented.
I wish I saw this video when I was back in school! Thanks for the cool tricks
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!
Great video lesson!!!
Thanks for your trick. It was more than what they taught it school
8:20 Absolutely no one can say "I didn't love it dude". Thanks man ❤️😀
Loved your teaching methods ...... Acknowledgement from Asia Pakistan ♥️
i have no idea why school chooses complex instead of simpleness
I like to read and learn new stuff. Thank you?! This was excellent. I need to brush up on my math skills.
You are a God sent I love your videos..Thank you
Thank you so much!!
I'm really happy to know this!!
This is explained it way better than my teacher
Why don't they teach this in school?
Because they know students are gonna come to learn from your channel anyway.
The math teachers weren't taught this way. So, that is not how they teach it.
I was taught myself this way 50 odd years ago, no tinternet then.
@@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.
Because teachers of schools don't really know this concept themselves. This concept may have been invented in the later years
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.
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.
Awesome James. I got taught to follow the formula, and this unfortunately is all too common. Thanks for teaching and thanks for watching.
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
@@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.
@@O-ShinSpringsWater click the vertical 3 dot at the end of comment and select edit. That should do the trick.
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
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 😉
Lol ok boomer
@@sonny3703 😆 Get off my lawn 😂
Because not all teachers are good at teaching, especially not teachers with a fixed mindset.
@@llb9605 Exactly 😉 may also have something to do with preferring to watch paint dry than do maths 😂
@Dark side of the force Wow! They should try freediving instead 😄
I love your videos! and yes I do teach this in school using 10%. Also with decimals first then integers. Really good stuff!
Awesome! Thanks for watching.
Fantastic. Thank you.
Keep the maths coming, you make me enjoy maths rather than hate it.
Brilliant tips ..thank you 🙏
Thank you so much this is a lot of help I wish you get more subs
DOUBLE THUMB, Josh you safe brain thanks
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
your the best man!
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!🙏❤️
Very helpful, thank you!
Thank you Sir!
Very Nice! Thanks
Genius, thank you.
I love this... it is not really about tricks but about mathematical reasoning... Good for you!
.
Thank you so much
This was extremely helpful
Thank you
Nice tips 👏👏👏
i like your videos. Good explanation😁
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.
u are so good!!!!
This is excellent! I am a homeschool mom and struggling to teach math “clues and tricks “. These are great. Thank you
They need to teach it this way at school. This was how I learned percentage
when I was in elementary school in Vietnam!
Awesome. We never did get taught this way - just follow the formula!
They teach us a different way bur way easier and shorter
Thnx this was very helpful 😊
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.
I figured out how do to it myself. I always wondered why I was never taught this too.
Great man
Yes, I do love you!!!
A wonderful percentage refresher that many of us need to stay numerate, thank you Josh.
Awesome!
Dear everyone,
All of this was taught in your school; you just weren't paying attention.
Nice !!! Does this work only for numbers with zero
Its funny how i much rather watch these videos than go to school 😂
You probably learned more too 😬
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.
Wish they taught me that at school. You've simplified this for me. Cheers fella. Thumbs up ☝
Maybe you already have it but if you don't I might suggest percentages like 18% or 15% (since in the US places expect tips like that sometimes.) Or anything from 5.0% through 11.9% since local tax rates can vary.
Math in class: 2+2=4
Math in homework: 4+8=12
Math in tests: if George left the train station at 5:00 PM, how far away would Jupiter be when Annie ate a cupcake?
my brain: ... ;-;
ripper mate!
thanks
thank you so much sir :)
Love u dude
Thank you..
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.
Thanks.
Awesome!!!!!
264 experts saying it's not taught this way (it is). 0 of them are teachers.
There is a teacher shortage, please become math teachers and show the rest how it is done.
How do you explain this on a Maths test paper in a actual exam?🤨
Can we just say TecMath said this on his RUclips channel?! 😊
at the top of your notes that you turn in w/ the test (write out the formulas you use). and just agree to disagree with you teachers if they dispute...
this is the number 1 best youtube channel created, i actually have a chance of passing my math test!
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
Oh my God thanks allot 😍
Never knew about reversing the %, 32 to 50 example, great trick 👍🏻
I feel like I just learned something from Bruce the shark from “Finding Nemo” and it was awesome. 🦈
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
Brilliant.. hetting my 2 daugjters tobwork on these tricks uve conceptualized.. love ur vids.. vheers, Vernon Alvares, Mumbai India
$80-30%=$56 ???? wrong answer, should be $79.70 ( $80-0.30=$79.70) writing 30% in decimals is 0.3
Should write it as ? $80-(30% of $80)=$56
The Easiest way is to determine what 10% is, Simply by Moving Decimal Point, Then if its 40% , Multiple that by 4. If it is 45% then add 1/2 of the 10% to that.
Example 45% of 180.
10% is 18
4 x 18 is 72
5% of 18 is 9
72 + 9 = 81
Quick Logic chk, 50% of 180 = 90.
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.
dude you just saved my test score
You should have covered finding the original value when you start with an already discounted value. Off the top of my head I can't think of a simple trick for it.
If it’s already discounted. Then you divide the discount value by the remaining percent balance.
Example: If we discounted 30% and got 105. What is the original price.
You would divide 105 by 70% since 100%-30%=70%
105/.7=150
Hopefully this help.
My brain doesn't do math after a certain point. I totally get the concept but there's some kind of block where the synapses aren't firing. Highly frustrating!
Know what U mean.
Shortcuts are for people who understand when to use them. They start to break down and can often no longer be a shortcut when you have to do them multiple times to arrive at the correct answer on more complicated numbers/problems. That's the reason you're taught the "correct" way to do it first. Understanding fundamentals is important and having a strong foundation will support your endeavors in the future much more, and for much longer, than relying entirely upon shortcuts. You're like the guy telling the budding artist to ignore lighting and anatomy and focus on their "style" instead since that's the end product they want anyway, but if they ever try draw a character in any position and lighting condition other than the one they've had ingrained by your suggestion, they produce nothing but a mess.
Stop advocating for tricks and shortcuts for people who don't know the basics first. Also, how many times are you going to post the same video? Even just scrolling down half my scroll bar has this same video, posted by you, 4 different times. Someone with over a million subs should be able to produce varied content instead of rehashing this same one every few months.
If learning this, make sure you understand the more basic step/understanding that "of" means "multiplied by".
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
This can be done even easier.
Just realize that for example, 33.3% of 20 is equal to 33.3% x 2 x 10 is equal to 66.6% x 10 or 66.6% of 10. Shift the decimal place one to the left and you have 6.66.
Or this way, 33.3% of 20 = 33.3/100 x 20 = 333/1000 x 20 = 333x20/1000 = 6660/1000 = 666/100 = 6.66.