I never learned that PEMDAS even had levels in school, I always assumed you did multiplication before any division whatsoever. I'm so thankful these videos exist.
Dude.. This is gold. Because of previous lessons from the site. I was able to do this problem in my head in less than 50 seconds. I skipped to the end of the video and I was right.
In school: the teacher literally teaches PEMDAS for 3 weeks 🤜 3 WEEKS! 🤛 and i still failed Me watching this video: wow thanks i learned PEMDAS for 5 minutes now i get it now and i can pass my math quarterly exam now
Our school uses a similar version of PEMDAS its called BIDMAS or Brackets. Indices(exponents). Division. Multiplication.Addition. Subtraction. I do think Multiplication should be done before division in the order of operations. And once again, you taught me this in five minutes rather than 7 weeks that it took my school to do so. Keep up the good work
OH MY GOD THANK YOU SO MUCH!! I'm way past the point where I should understand this, but I forgot it and came back here when it didn't make sense. only took a few minutes and I fully understand it again :D
when you got down to 7 x 2+16 divided 4 x 2 you did the division first before the multiplication why? would you do all the multiplication before you can divide? or am i missing something?
Hey khan I have your videos on my iPod touch and watch them everyday I didn't get to go to school as a kid and always wanted to learn and now I'm on pre algebra just wanted to thank you for posting and I hope you don't quit I'm trying to become a doctor and i gotta learn calculus thanks again! Kaeleb
Wow! I'm torn. There probably isn't anybody in this entire world who hates maths as much as I do. I really struggle with this it, but at the same time I'm completely fascinated by it. (maybe fascinated is too strong a word. I think I'm intrigued rather than fascinated) There really is a beauty in the pure logic of this subject . ( Logic is beautiful isn't it?) Now, I don't think I have a learning disabilitiy where maths is concerned, but I do learn incredibly slowly. Is mathematics basically learning the 'rules' and then repeated practice? Is this the way to be competent with maths or do I just not have the right kind of brain for it? Oh, I'm 51 by the way - my brain is decreasing in learning efficiency. Is it too late?
I'm lost. Okay so why is the answer not 16. My work's end looked like this: 7x2+ 16 ÷ 4x2= 14 + 16 ÷8, then the division into 16 so: 14 + 2 = 16....I was never taught (graduated in 2006) that M and D are "same level" and to be worked left to right like that, not that I recall :( . I mean that's why it was called "order of operations"...if u follow the letters...the M (multiplication) first and then the D (division). I'm not arguing YOUR answer at all, I'm just trying to work it out for myself and want to do it correctly so I appreciate all of your guidance with this! Your video was great and very neat and tidy! Thank you so much for teaching me something NEW essentially! Cheers!
Nataly Charlotte no he did it correctly. Multiplication and division are grouped together. Same with addition and subtraction. It has always been that way and I graduated forever ago. Most people don’t keep that rule in mind, we’re never taught order of operations correctly, or try to follow the mnemonic device of PEMDAS exactly how it’s written even though logically it’s incorrect. The answer is in fact 22. If you want to check you can always plug in this problem on numerous calculator websites that are free these days and you will also get 22.
Can anyone help me with the first order of operations. My professor said that in old textbooks there is a first order of operations that is not groups or parentheses. Not sure what it is and could not find it on the web. He also said it is not functions. Please help anyone.
@HaoSci Why not have a multitude of ways to understand it? That way people who don't think the same way as you also have a chance to learn the material.
Hey need your help.. Can you answer this? 50 + 50 -25 * 0 + 2 + 2 If there is no visible parenthesis in the equation, and no operation before it, can you automatically consider/put it in parenthesis hence making the operation as multiplication? Thanks
Hence making it as: 50 + [50 (-25) * 0] + 2 + 2? Like in algebra 2x doesnt have any parenthesis but you multiply 2 with the value of x. Correct me if im wrong. Thanks.
People need to stop using BODMAS or PEDMAS or PEMDAS and learn the reason for them. They are not rules but a shortcut for remembering. Exponents need to be expanded. Multiplication needs to be expanded before operations can be done. That is why they are done first. Then Multiplication becomes addition. And subtraction is also addition by adding negatives. So exponents and multiplication and addition and subtraction is addition. So you are left with the oddball division. There is no left to right. Division is up and down. The rules are associative, commutative and distributive.
thanks! for the video! question what is the order of operation in an equation like this F = mg = w/8(7x9) so which should I do first = mg or = w/8(7x9)? in order to get F?
Technically the use of an = sign assumes that one side of the sign is the same as the other side of the sign therefore you could solve either one as there are 2 = signs and all 3 of them are equal
ok my Algebra book says use order of operations to simplify and there is weird stuff like (-2)^2 and 5-2 times 3^2 can you show how to do something like that plz
Do we really need the mnemonic device, which has no basis of logics at all? It sticks to your mind longer, if you know why we need to follow the order.
No way. I'm already an adult and cuz of you I JUST learned pemdas is P E MD AS, I thought it was P E M D A S, so multiplication always goes first even if division came first from left to right. Also for the record I never failed and my average is B. Goes to show the education system is flawed. Or maybe I was just lucky to have never failed.
Does multiplication come before or after division using PEMDAS? If it comes before division wouldn’t 4x2 come before 16divded by 4 I’m honestly stumped 🤔
what do you mean by "were inside the parentheses here, so inside of it there are no longer any parentheses" I'm clearly seeing a parentheses you highlighted about 8 times ?
this is invalid. when you get down to: 16 / 4 * 2 it could be 4 * 2 or 16 / 8 this evaluates to either 8 or 2. you need to add another bracket to make this a valid equation.
This kind of stuff often appears in those viral order of operations problems with everyone arguing because of lousy notation. Just proves that fractions are superior and the linear way of writing creates confusion and requires too clarification parantheses.
POV: you’re coming from a social media app where they had a question that needed to be solved using PEMDAS and you’re trying to figure out why the answer is 3 and not 5.
Them: Pemdas stands for Parenthesis, Exponents, Multiply, Divide, Add, Subtract
Me: Pemdas stands for Please End My Depression And Suffering
When I was in school, my teacher would tell us "Please Excuse My Dear Aunt Sally"
fr
i love your pfp
Sal just taught me more in 5 minutes than I learned in two years of math as a kid. Thank you Sal...
I first heard PEMDAS as
Please End My Day At School
Re:Dolphin // nice
L O L O K B O O M E R
bruh........
I will stick with bodmas instead of pemdas
ur mom
I never learned that PEMDAS even had levels in school, I always assumed you did multiplication before any division whatsoever. I'm so thankful these videos exist.
guess i got it since i was able do the answer in my head in 15 seconds thanks to you my man, thumbs up
Thanks, very helpful for me to understand PEMDAS in order of operations.
Can you show me pictograms and dot plots?
I understand it better thanks
thank you so much, I have a test tomorrow and will probably get an a on it thank you!
u welcome
i know im awesome
Thank you for being an excellent teacher!
Thank youu soo much ! I have a test next week and i think i can get at LEAST a B :)))
Dude.. This is gold. Because of previous lessons from the site. I was able to do this problem in my head in less than 50 seconds. I skipped to the end of the video and I was right.
thank you Khan Academy These will help my 6th and 7th grade students. Please Excuse My Dear Aunt Sally! Epic work sir
I learn more watching you tube then school,thanks a lot this really helps.
In school: the teacher literally teaches PEMDAS for 3 weeks 🤜 3 WEEKS! 🤛 and i still failed
Me watching this video: wow thanks i learned PEMDAS for 5 minutes now i get it now and i can pass my math quarterly exam now
Then you should game less ☠️☠️
Our school uses a similar version of PEMDAS its called BIDMAS or Brackets. Indices(exponents). Division. Multiplication.Addition. Subtraction. I do think Multiplication should be done before division in the order of operations. And once again, you taught me this in five minutes rather than 7 weeks that it took my school to do so. Keep up the good work
i do bodmas
I GOT MASS
OH MY GOD THANK YOU SO MUCH!!
I'm way past the point where I should understand this, but I forgot it and came back here when it didn't make sense. only took a few minutes and I fully understand it again :D
I learned Pemdas a different way: Please Excuse My Dear Aunt Sally
Me three(plus my 2 other siblings)😃
+tman400 gyki sub to my channel and I'll sub back
yasmeen earlybird me too!
yasmeen earlybird same but with FLTR (from looking to rough)
That is still called pemdas dummy
Super valuable. So easy to follow and understand. Thanks so much
Nice explanation...
Thanks for your dedication...
Thank you so much! This helped me so much!
@buddy767 when you subtract a negitve number it cancels out and become a positive, im pretty sure. sorry if im wrong, im rusty at this myself.
showed someone the first thirty seconds of this video to prove them wrong in an argument, thanks Khan Academy
Thank you so muchh i have an S.T tomorrow and this really helped me
thank you! this really helps!
Your videos are very helpful and good for studying
that's suave...thanks alot, sharing this to the class
In England we use BODMAS
BRACKETS
Orders
Divide
Multiply
Addition
Subtraction
That was great Can you use it in daily life. 2+2÷2 why and where. Not in the hospital giving medications. Not distributing food or supplies.
Thank you for this video
when you got down to 7 x 2+16 divided 4 x 2 you did the division first before the multiplication why? would you do all the multiplication before you can divide? or am i missing something?
because you should go left to right
Thank you.
Hey khan I have your videos on my iPod touch and watch them everyday I didn't get to go to school as a kid and always wanted to learn and now I'm on pre algebra just wanted to thank you for posting and I hope you don't quit I'm trying to become a doctor and i gotta learn calculus thanks again!
Kaeleb
Hello! I see you wanna be a doctor!
Well... I hope you succeeded! Because like
its 2022 now but
I'm sure u did succeed
thanks so much this helped me understand my H.W. ✌
this information is great, thank you very much, I don't have the money for a tutor, this helps very much
POV: your on online or school and one of ur parents r making u watch this.
So true
Yes
true
this is so real
watching for fun🫣
Thanks a lot
this really helped my on my test thankyou so much!
awesome man look at math antics it`s also awesome
So easy know
Wow! I'm torn. There probably isn't anybody in this entire world who hates maths as much as I do. I really struggle with this it, but at the same time I'm completely fascinated by it. (maybe fascinated is too strong a word. I think I'm intrigued rather than fascinated) There really is a beauty in the pure logic of this subject . ( Logic is beautiful isn't it?)
Now, I don't think I have a learning disabilitiy where maths is concerned, but I do learn incredibly slowly.
Is mathematics basically learning the 'rules' and then repeated practice? Is this the way to be competent with maths or do I just not have the right kind of brain for it?
Oh, I'm 51 by the way - my brain is decreasing in learning efficiency. Is it too late?
yahvinah1 im with you...couldnt remember what it was for at all.
Great example ty
Pls God let Sal's videos get 500k likes
I'm in 6th grade graduating in just a few months and this guy thought me how to do math more than my teachers can
I like this video cause it helps me on math
Khan academy the GOAT
THANKS 🙏 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏so much I’m totally gonna ace my test
This was really helpful. I will teach my children this easy good explanation. Thank you
help me
Please
Thanks this really made it easier
P- Parenthesis
E- Exponent
M- Multiplication
D- Division
A- Addition
S- Subtraction
Sorrh, could'nt help my self from commenting. :P
Thank you 😊
excellent, sir!
very well explained it helped thank you
thanks so much this helps me understand better!
Seems that many people need to learn this thing again
I'm lost. Okay so why is the answer not 16. My work's end looked like this: 7x2+ 16 ÷ 4x2= 14 + 16 ÷8, then the division into 16 so: 14 + 2 = 16....I was never taught (graduated in 2006) that M and D are "same level" and to be worked left to right like that, not that I recall :( . I mean that's why it was called "order of operations"...if u follow the letters...the M (multiplication) first and then the D (division). I'm not arguing YOUR answer at all, I'm just trying to work it out for myself and want to do it correctly so I appreciate all of your guidance with this! Your video was great and very neat and tidy! Thank you so much for teaching me something NEW essentially! Cheers!
Airyn Doyle i agree I think he did something wrong I commented the SAME thing
Nataly Charlotte no he did it correctly. Multiplication and division are grouped together. Same with addition and subtraction. It has always been that way and I graduated forever ago. Most people don’t keep that rule in mind, we’re never taught order of operations correctly, or try to follow the mnemonic device of PEMDAS exactly how it’s written even though logically it’s incorrect. The answer is in fact 22. If you want to check you can always plug in this problem on numerous calculator websites that are free these days and you will also get 22.
Why does someone dislike this educating video come on it mean those 3 hate math!!!!!
Can anyone help me with the first order of operations. My professor said that in old textbooks there is a first order of operations that is not groups or parentheses. Not sure what it is and could not find it on the web. He also said it is not functions. Please help anyone.
thank you for helping me :)
I want another please...
thank you sir !!!
sometimes even when i use pemdas im still wrong because "left to right" which doesnt makes sense since multiply would be all the way to the right
Thank you so much! That helps me a lot of homework 🤪 to do PEMDAS!😍😍🥰😍😍🥰😘💘🖤💙💛💛❤️
What’s with the emojis 💀
I'm in collage and this helped me
Your in a collage? Like the pictures
The process looks like a diamond
yep. hard as a diamond XD
@HaoSci Why not have a multitude of ways to understand it? That way people who don't think the same way as you also have a chance to learn the material.
Order of operations
this one was kinda hard can you, or do you have more examples of this? woulda been nice to get 3 more problems.
I don’t know how you learned this and it’s easy but I learned
Please Excuse My Dear Aunt Sally.
intresting
There we go
Hey need your help..
Can you answer this?
50 + 50 -25 * 0 + 2 + 2
If there is no visible parenthesis in the equation, and no operation before it, can you automatically consider/put it in parenthesis hence making the operation as multiplication? Thanks
Hence making it as:
50 + [50 (-25) * 0] + 2 + 2?
Like in algebra 2x doesnt have any parenthesis but you multiply 2 with the value of x. Correct me if im wrong. Thanks.
People need to stop using BODMAS or PEDMAS or PEMDAS and learn the reason for them. They are not rules but a shortcut for remembering. Exponents need to be expanded. Multiplication needs to be expanded before operations can be done. That is why they are done first. Then Multiplication becomes addition. And subtraction is also addition by adding negatives. So exponents and multiplication and addition and subtraction is addition. So you are left with the oddball division. There is no left to right. Division is up and down. The rules are associative, commutative and distributive.
thank you, so many people just tell you the way things go and never why
thanks! for the video!
question what is the order of operation in an equation
like this F = mg = w/8(7x9)
so which should I do first = mg or = w/8(7x9)? in order to get F?
Technically the use of an = sign assumes that one side of the sign is the same as the other side of the sign therefore you could solve either one as there are 2 = signs and all 3 of them are equal
what program u using
(-2)(-2)= 4
5-2 x 3^2= 5-2 x 9 = 5 -18= -13
good :)
ok my Algebra book says use order of operations to simplify and there is weird stuff like (-2)^2
and 5-2 times 3^2 can you show how to do something like that plz
I wasn't really paying attention in online class so I just looked this up
Do we really need the mnemonic device, which has no basis of logics at all?
It sticks to your mind longer, if you know why we need to follow the order.
What do you mean by “cards” when there numbers
No way. I'm already an adult and cuz of you I JUST learned pemdas is P E MD AS, I thought it was P E M D A S, so multiplication always goes first even if division came first from left to right. Also for the record I never failed and my average is B. Goes to show the education system is flawed. Or maybe I was just lucky to have never failed.
BEDMAS is what I was taught.
Brackets, exponents, div, mult, add, sub
same
Uwu
Does multiplication come before or after division using PEMDAS? If it comes before division wouldn’t 4x2 come before 16divded by 4 I’m honestly stumped 🤔
Remember, usually follow the rulings of pemdas but it goes L-R first always
Division is just multiplying by a fraction. Subtraction is just adding a negative number.
what do you mean by "were inside the parentheses here, so inside of it there are no longer any parentheses" I'm clearly seeing a parentheses you highlighted about 8 times ?
I learned the pemdas on math
i learned both
@Tehcarp Touché
WooW.!
22 i think just in my head within 11 secs. Lets see. Play again.
this is invalid.
when you get down to:
16 / 4 * 2 it could be 4 * 2 or 16 / 8 this evaluates to either 8 or 2.
you need to add another bracket to make this a valid equation.
This kind of stuff often appears in those viral order of operations problems with everyone arguing because of lousy notation. Just proves that fractions are superior and the linear way of writing creates confusion and requires too clarification parantheses.
tbh i think pemdas only confuses ppl i never heard of it until recently
PEMDAS
dang i took a lot of notes on this can help on my order of operations ;]
Sheesh
My question is why is this the best order of operations?
2:16 What? I didn't understand what you said.
I did 10(5-2)
Same
POV: you’re coming from a social media app where they had a question that needed to be solved using PEMDAS and you’re trying to figure out why the answer is 3 and not 5.
Similar to BODMAS
This paper in front of me makes life harder because IS ABOUT CARDS
How you do it