I was able to get 203. You explained a similar equation before, so I applied your expertise on this question and I came up with 203. Thank-you for teaching me math problems. I'm 67 now and I was very good in math when I was in school. I obviously didn't retain my knowledge in this subject, so I'm happy that you refreshed my mind.
@ChristianAustinite
Жыл бұрын
238
@petersearls4443
Жыл бұрын
@@ChristianAustinite no 203 is correct.
@nancyjanzen5676
11 ай бұрын
202
@nancyjanzen5676
11 ай бұрын
Yeah 203 because I firgot the answer by the time i got to the comments.
@petersearls4443
11 ай бұрын
@@nancyjanzen5676 how did you come up with 202?
@juicelareina750
6 ай бұрын
I just want to say thank you for making it so easy to comprehend. I really struggled with math since the sixth grade because my math teacher really traumatized me and belittled me in class so ever since then my mind would literally shut down when it came to algebra. I failed many tests because of it and it's something I always tried to overcome and get better at. Thanks to you I've been able to solve most of these problems you present here and I'm really happy about that! I'm no longer afraid to try and solve math problems. I'm very close to being sixty years old but I'm not one to give up on something I really want to learn. You have been the only one I can really learn from and believe me I have tried learning from others but for some reason it just would never stick to my brain lol So thank you for doing this, you truly have a great gift to teach, especially for those like me that struggled for so long.
@eufrosniad994
3 ай бұрын
Ah, sometimes the people who are teaching us can have good intentions, but quick to judge. I know of someone who their own father who used to help him with studies said that he should never do anything math related. I still remember the day when it happened to him. He himself had barely passed his middle school math exam and could not understand algebra. But, as incredible as this might sound, he was amazing at math in high school. On super difficult math exams, he would be the top scorer in the entire school. He got into Engineering with one of the top scholarships, was the top scorer in math exams at the University, went onto complete his PhD in the same field lol. He also partly credits one of his high school teachers that really motivated him and also made things click for him. Imagine if he had completely given up.
@nickfraser4599
12 күн бұрын
@@juicelareina750 may I add a helping factor? You should always look.up every word you do not understand when you encounter it. Look up "mathematics", "arithmetic", "algebra", "algorithm", "calculus", etc., Inability to understand and use math traces back to earlier words misunderstood. Believe me, teachers have their own! But you're never too late to look them up. Best of luck in your future math endeavours.
@colleenwalsh6899
11 ай бұрын
I'm 71 and you have shown me a very simple basic thing that teachers never made clear to me about these problems. That is regarding the PEMDAS. I coul 12:46 d never get the correct answers because I always thought that after parentheses and powers were done, then I had to do multiplication first, then division, then addition and finally substraction, always in rhat order. WTHeck!!! Now I wish I had a whole book of these problems to do just to prove thar I am not stupid afterall. Thank you so much teacher John. You are the best. You don't rush and you speak in a nice, even, quiet tone that makes me feel like I really can do math. God bless you.❤
@MnMGpa
4 ай бұрын
Not once in school was M/D and A/S described as a set (and subsequent "switching" of the order of those operations depending on left to right where they fell in the equation) the way you did it. Now, after watching this, I understand. Great job in clearing that up.
@kakou2003
11 ай бұрын
As I understand it, what is in parenthesis is calculated first. Division and multiplication come before plus or minus but they are equal so you calculate them in the order in which they appear. Therefore 18 divided by 2 = 9. Then multiply 9 by 3 which = 27. Then then the addition in the parenthesis means 2 + 27 which is 29. The 7 outside the parenthesis is now multiplied by the number in the parenthesis, so 7 x 29 = 203.
@DillyDahlia
11 ай бұрын
That’s exactly how I did it. For reference, I’m 62 and am glad I still remember how I learned to do it all those years ago.
@surinder50
11 ай бұрын
But if we are Dividing before multiplying….why is it not PEDMAS….and not PEMDAS??I grew up with BODMAS. BRACKET OF ETC.
@TheGdav0202
11 ай бұрын
@@DillyDahlia I'm also 62 and got it the same way!!
@Marshall_EL34
11 ай бұрын
@@surinder50 It is simple ...multiplication and division have the same priority. Therefore ...you go LEFT to Right. Multiplication is not a priority over division. Division is not a priority over Multiplication. After brackets, after parentheses ...do Multiplication and/or division in the order that they come from left to right. So technically you are right ...PEMDAS and PEDMAS are one and the same.
@shirleycorrie5678
11 ай бұрын
We’ll, I’m 73 and have forgotten all of the rules….and never heard of PEMDAS. I did however, KNOW to do the division first, the multiplication second, then the addition and finally the multiplication. Whoever taught me my primary math must have been a really good teacher. And I thank her/him even though they have probably have passed on.
@DarrylAJones
11 ай бұрын
When working a complicated equation, you have to look at the large picture and deal with the top priorities first. In this situation, the top priority is the brackets. This means that you have to complete this equation inside the brackets before going to anything outside of them. Within the brackets, you have a division sign and a multiplication sign that take equal priority over an addition sign. Doing the higher priorities first, and left to right, you have 18 divided by 2, which equals 9, and then 9 x3, which equals 27 as the total of the two operations. Then the 2 is added to 27 for the final operation within the brackets, which equal 29. Then you go outside the brackets and take the 7 and multiply by 29, which equals 203. The brackets( which are indicating to multiply the result within the brackets(29) to the result outside the brackets, which is simply the number 7) take the highest priority in the total operation for the very reason I have given to you within THESE brackets. So, 203 is the correct answer. Thank you, Ruth Coffey!
@japersjolly8763
8 ай бұрын
There's nothing complicated about this.
@virginiahoffman2547
8 ай бұрын
precisely.
@phishmastermike
7 ай бұрын
That’s how I did it lol
@yaninalewatava8086
7 ай бұрын
Yes,you are right 👉 I also did this working
@natalieradford6214
11 ай бұрын
I got 203. We were taught BODMAS, Brackets Of Division, Multiplication, Addition and Subtraction. It's quite easy.
@robertogarcia7019
11 ай бұрын
You must be very young
@natalieradford6214
11 ай бұрын
@@robertogarcia7019 Born in the 60's, so not so young. lol
@Bandomeme
11 ай бұрын
We were taught BODMAS too and I was born in the 1940s!
@rich7447
11 ай бұрын
O is orders (exponents/roots).
@brennaturton6891
11 ай бұрын
Agreed. Division should come before multiplication.
@jackievanburen9301
7 ай бұрын
203. Solved inside the parentheses first by dividing, multiplying, then adding to get 29.Multiplied 20x7 for 140 then 7x9 for 63.Finally combined those products. 140 + 63=203
@1stBorn538
6 ай бұрын
That's what I got
@83adnil
6 ай бұрын
I got the same, 203.
@Nobleman99
6 ай бұрын
Also
@KerryCOUSINO
6 ай бұрын
Multiply before divide in the parentheses.
@williamfuller2389
6 ай бұрын
@@KerryCOUSINO Get your self a Scientific Calculator and try 20÷4×5 and see if you get "1", as you say, or "25" like those doing PEMDAS PROPERLY would get.
@googiesfairyfarm4834
11 ай бұрын
I got it right, I’m happy to say! A couple of years ago I probably wouldn’t have but I’m doing K12 online school with my grand daughter which has reinforced what I already knew. I also have learned some things I was never taught in school. PEMDAS was one of those things. I’m 59 years old and am FINALLY confident in my basic Math abilities.
@elephantintheroom5678
11 ай бұрын
Well, I'm 56 and I got it right, with PEMDAS/BODMAS. Also, when you get to 7x29, you can do mental maths of 30x7=210, 210-7=203.
@MaryDunford
11 ай бұрын
That's how I got it. Is it correct? I haven't done this kind of math since high school. Lol
@wendigo1919
11 ай бұрын
203. That is 100% correct. Math is my forte.
@NeutronStar9
11 ай бұрын
Did exactly this 30x7 - 7
@89qwyg9yqa34t
11 ай бұрын
I don't see how you ended up with the same answer. The difference between the two is order of operations between multiplication and division. If you do division first, you get a different answer than if you did multiplication first.
@dale9724
11 ай бұрын
Hurrah! I remembered the old math rules.
@TheEvie202
4 ай бұрын
Got it right because, following pemdas, I did 18/2=9 straight away then 7(2+27) 7(29) = 203
@ruthr1093
11 ай бұрын
You are such a wonderful teacher! I’m 77 and have always been terrible at math, but I think I would have loved it if I’d have had a teacher like you! I actually learned from angry nuns and was terrified of making a mistake! The only time I enjoyed math was geometry…I could understand that for some reason.
@lyndawebster6840
11 ай бұрын
Wonder what makes them so angry
@YeshuaKingMessiah
11 ай бұрын
It’s not math It’s applied logic
@nancyhowell7735
11 ай бұрын
I’m 76. Had “new math” in 8th grade, Algebra I then Algebra II in 9th and 10, Geometry in 11th, College Algebra sophomore year in college and, finally Mathematics Fundamentals to try and make sense of all this. Not once in all those courses or years do I ever remember being taught PEMBRAS.
@MsTexas73
11 ай бұрын
Interesting. I was taught PEMDAS as early as 3rd grade back in the 80s. My mother learned it in the 60s. My grandfather was taught “order of operations”, which is the same thing. He graduated school in the 40s.
@linedanzer4302
11 ай бұрын
Just because you weren't taught PEMDAS, does not mean it did not exist. At the end of the day, however you were taught as long as you get the right answer, you're good.
@MsTexas73
11 ай бұрын
@@linedanzer4302 🎯
@YeshuaKingMessiah
11 ай бұрын
We used a rhyme I’m from before acronyms lol
@lorimojado1912
11 ай бұрын
Baaaahaaahaaa. I thought it was just me. 30 years later my eldest took geometry in 9th grade. Went way further than I could have. She taught me PEDMAS. Sure seems strange to me.
@somedaygibson6894
11 ай бұрын
I never did well in math at school but I never had a teacher as good as yourself. The way you explained it it was easy. Thanks.
@kristiancartwright7451
7 ай бұрын
Actually it’s teachers like this that probably kept you from learning. This guy is trying to sell you something and doesn’t even attempt to use modern pedagogy that has stopped using PEMDAS all together.
@marjies.2332
4 ай бұрын
Oh my goodness, where were you when I needed you 45 years ago?? I made straight A’s in everything EXCEPT algebra. I thought I was just dumb in algebra but now I understand it was the method used to teach me. Wow! A new subscriber here.
@maidenminnesota1
11 ай бұрын
I got an answer of 35. I believe I learned to do what's inside parentheses, with multiplication first, then division, then addition, then subtraction, then what's outside the parentheses. Therefore, 2x3=6. 18/6=3. 3+2=5. 7x5=35. Now I'm going to watch the video and see if I remembered correctly, although I've always been horrible at math. I do believe (there was no such thing when I was a kid) that I have a math learning disability, or the "new math" of the 1970s left me with one. EDIT: Okay, so PEMDAS is pretty much what I learned, or at least the MDAS portion, but never switching the division and multiplication. Never. Because then it would be PEDMAS. I guess my entire academic career taught me WRONG. No wonder I can barely add 2+2 these days, and I'm 58 years old.
@techone72893
11 ай бұрын
Yes, whoever taught you either taught you wrong, or didn't make sure you got the nuance of the MD and AS portions of the mnemonic. Also, there is no such thing as new math, per se. Math has always been math, but what made it "new" was the way it was taught on a fundamental way. The same goes for today's "new" math known as "Common Core" math, which is, quite frankly, the worst way to teach math ever invented.
@lindastrang8703
11 ай бұрын
Not at all. You are right EXCEPT when div and mult are both in the same equation. Same with Add and Sub. I forgot too. I'm 75
@stephaniegee2297
11 ай бұрын
@@techone72893 I disagree if you got 203 then you are doing new math so either we were taught wrong back in the day or this is new math
@MrDavidMoyer
11 ай бұрын
I've never liked "PEMDAS" acronym, somebody invented that after I graduated from high school and I think it's stupid because it's misleading. It makes it look like each letter is its own step. But as shown in the video here - which is the correct way to solve the problem - the MD is a single step. Multiply and divide have EQUAL priority, which one "goes first" literally depends how the problem is written from left to right - which one do you run into first as you read the equation? Then it's the same story for the AS - it is a single step where both addition and subtraction have the same priority. So really I think it should be written like this "P/E/MD/AS" or something instead of just "PEMDAS". If that makes sense. So what I learned to do, and this is something I taught myself because I'm a frikkin GENIUS... is before I even try to do ANY of the math I'll do two things: 1. Rewrite any division as a FRACTION. This prevents me from getting confused about which terms go into the division after I start doing the math. 2. Rewrite any subtraction as a NEGATIVE addition, this way the negative sign will move with the number but I can move the operation around the equation like a regular addition task if I need to reorganize the way it's written out. I don't know if you've started learning about negative numbers yet but if not then I'm sure you'll learn about them soon and you can start using this step once you do. Remember that these two steps I mention are only for the purposes of better clarity in the way the problem is written. I haven't actually done any math yet. So those steps are optional, but personally I find them to be pretty useful just for the sake of keeping things organized as I start moving numbers around. Also remember that these two little steps must also follow the same basic rules as "PEMDAS."
@sonyacotton4881
11 ай бұрын
I applied My Dear Aunt Sally and got 35, too.
@chrislam8260
3 ай бұрын
This is the rule: Inside the bracket always go first. Multiplication/division is (equal weight and left first) must before addition/subtraction.
@paulquist2475
11 ай бұрын
I'll be 67 this Sunday and I wish that I had had you as a math teacher. I hated math in school, but I'm really enjoying your videos! Yes, you can teach an old dog new tricks! 😏
@TommyBo42
8 ай бұрын
For those getting hung up on the MD and order to perform the operation, remember this: division is just multiplication by the inverse. So 8 ÷ 2 is the same as 8 x ½ . Same operation will always then go from left to right. Same thing goes for the AS: subtraction is just adding the negative of the number. So 5 - 2 = 5 + (-2) and then again - perform in order left to right.
@cherylsummerfield6804
19 күн бұрын
In grade 7 I was taught “BEDMAS”. Brackets, Exponent, Division, Multiplication, Addition, Subtraction. D M are which comes first as also A S. Interchangeable based on order of operations
@ellicooper2323
Жыл бұрын
74 here and I’ve forgotten all this. Your channel is better than playing games to keep my brain moving. Thank you. What if there are more than one same expression? 7(5+20/2*3/6)?
@juliecranford534
Жыл бұрын
You still just follow the order of operations. PEDMAS. Parentheses, exponents, division/multiplication, addition/subtraction. You work left to right. Start inside your (). There are no exponents. Next do all multiplying and dividing left to right. 20/2=10. 10*3=30. 30/6=5. Now do addition and subtraction. (5+5)=10. Now move outside your parentheses. 7(10)=70. Hope this helps!
@ellicooper2323
Жыл бұрын
@@juliecranford534 Thank. Thought maybe but could not remember.
@janeoleary8454
Жыл бұрын
I'm 75. Never ever took any higher math in HS. I got it right !!! Thank you John
@C.E.Thomas1952
Жыл бұрын
LOL I'm 71 and got it wrong. I fell into the classic trap that John spoke about).
@janeoleary8454
Жыл бұрын
@@C.E.Thomas1952 I learned from a previous video not to screw this one up. Lol
@juliecranford534
Жыл бұрын
@@C.E.Thomas1952Keep trying! I love that you’re working at it and challenging yourself! I bet you get it next time!!❤️
@bernadette6768
Жыл бұрын
70 and I watched yesterday and I got.
@justjay4586
6 ай бұрын
For everyone still curious, PEMDAS should really be written as PE(M/D)(A/S), as multiplication or division, then addition or subtraction, are done left to right in the equation. If division came before multiplication, that's how you would simplify the equation, or vice-versa. Same would be applied to addition and subtraction. If subtraction comes before addition, that is how it would be applied.
@markholahan2718
11 ай бұрын
I'm 73 years old. I had a terrible time in school with math. I just didn't understand how how teachers came up with the answers. There explanations just didn't make sense. Never heard of Pemdas. Your never to old to learn. Thanks!
@tombgoth
11 ай бұрын
the same here. 73 rules
@carleefarrarr2274
11 ай бұрын
203 All Day long!!!😁
@Myrrhandroses2497
11 ай бұрын
I totally get that.
@tallcedars2310
11 ай бұрын
Yes, we learned BEDMAS, now it's PEMDAS🤣. Will try that to see if it's the same answer, thanks! Oh, I'm 67 and from lower BC. Ha ha, did the question before watching🙄
@triXsolarflare
11 ай бұрын
@@tallcedars2310 Actually can depend on what country you grew up, PEMDAS, BEDMAS, BODMAS, but those are not the math; they are all just acronyms, used as teaching aids to help remember the actual math - "The Order of Operations"
@AndyPerry1972
Жыл бұрын
It's amazing you know on Facebook (I came off FB about 2 years ago) that when these questions came up, the amount of people who would argue with the Order of Operations and how they "were not taught that when they was at school" and how "it's all wrong and made up recently". Some of these people were so called teachers! One of the reasons I came off FB to be honest as I found myself involved in those arguments pointing people to links and references about OoO and how it stemmed back hundreds of years lol I do love watching these though even if it is just to check my ageing brain is still somewhat with it
@lourdeswright
6 ай бұрын
U could’ve also used the distribution system: 7(2+27)=14+189, which is: 203.
@petersearls4443
12 күн бұрын
Only after completing the division and multiplication. You don’t want to use distribution when division is involved. Ex 2(4÷2) With distribution: 2(4÷2)→8÷4=2 Without distribution: 2(4÷2)→2*2=4
@HappyHalBallard
11 ай бұрын
The problem here isn't the use of PEMDAS, it's that many were taught the APPLICATION of order of operations incorrectly. It"s, 1. Parentheses 2. Exponents 3. Multiplication and Division as they appear from left to right. 4. Addition and Subtraction as thhey appear from left to right. Thus PEMDAS is four steps P E MD AS not 6 That's it. That's all.
@eileenmcgann1043
Жыл бұрын
Yey, definitely understanding PEMDAS🎉
@ArielArcea
Ай бұрын
even by mind calculation,you can solve it directly--- 2x3 is 6,then 18 diivided by 6 is equal to 3,theñ 2+3 is equal to 5,then 7x5 is equal to 35 which is the final answer using PEMDAS operation.
@petersearls4443
12 күн бұрын
Using PEMDAS in this example you would divide first. M&D are a group and are processed left to right as encountered.
@LannyHoover-s1b
5 ай бұрын
Why not write the equation thus 7(18/2x3+2)=? Then we simply apply left to right within the parentheses?
@BDom-vo3ph
11 ай бұрын
I'm 61 years old and I always had rotten math teachers. They never pulled me aside when I started failing and try to pinpoint what I was doing wrong. I never finished college, but I took algebra and found out from a wonderful teacher all of the little tricks and shortcuts. By that time it was too late to do me any good!!! I think in high school teachers pick certain students to fail in order to have a balanced classroom of failures and successes!!! I guess I was chosen to be a failure.
@TVY2013
11 ай бұрын
That's all in the past. Good for you being here to better your math knowledge.
@757optim
11 ай бұрын
Got 203. No one is more surprised than I am. : )
@williamlynch1929
9 ай бұрын
203!
@LeeC-t2w
8 ай бұрын
So true! @757optim.. you are hilarious!!😂
@Nevets1970
4 күн бұрын
There are Some math high school teachers Today saying that the answer should be 35 Not 203. According to them, you Always follow PEMDAS in order and Not multiply Or divide whichever comes first. As a JROTC instructor with an Engineering degree, I was told I’m Wrong and to stick to teaching how to march.
@pdet1951
Жыл бұрын
If you follow the rule PEMDAS it’s easier and fun to do
@67L48
Жыл бұрын
The problem with PEMDAS that I've recently encountered is that people forget that the MD are equal. The 20-somethings that look at this do PEMDAS in that exact order. So, 18/2*3 doesn't go left to right with multiplication and division being otherwise equal priority. Nope. M comes before D. Thus, 18/2*3 converts to 18/(2*3) = 3. Just as 18+2*3 would be 18+(2*3) because A comes after M, so does D. The acronym leads to faulty logic because the kids remember the acronym, its purpose, but forget the actual principles.
@PRAVEENMEHROTRA
2 ай бұрын
Let's evaluate the expression 7(2 + 18÷2 x 3) using BODMAS: 1. Evaluate the expression inside the parentheses: - Divide 18 by 2: 18÷2 = 9 - Multiply 9 by 3: 9 x 3 = 27 - Add 2 to 27: 2 + 27 = 29 2. Multiply 7 by the result: - 7 x 29 = 203 So, 7(2 + 18÷2 x 3) = 203. The final result is 203! Note that, as we discussed earlier, BODMAS evaluates division before multiplication, which leads to a different result compared to PEMDAS.
@gavindeane3670
2 ай бұрын
You can't get a different result with BODMAS vs PEMDAS. They're the same thing. BODMAS does not do D before M and PEMDAS does not do M before D. That's a common (and understandable) misconception. It's a 4 step process not a 6 step process. The DM step in BODMAS is identical to the MD step in PEMDAS. BODMAS/PEMDAS simply tells you to read the divisions and multiplications left to right. With 18/2×3 you do the division first because it appears first.
@michaelmappin4425
3 күн бұрын
In both MD or DM, one is not superior to the other and are done left to right. Same applies to addition and subtraction.
@yamorak
6 ай бұрын
This is about a 4-second-do-it-in-your-head question. Boils down to 7x30-7=203.
@trichiaashley7904
3 ай бұрын
I got 203
@dianneroberson1932
21 күн бұрын
I have a question. Why do you assume that this is a multiplication problem? I see no symbol for multiplication-only the equation in parentheses after the 7. Does an equation in a parentheses always equate to a multiplication?
@petersearls4443
12 күн бұрын
If a value directly precedes a parentheses, it is an implied multiplication.
@happygolucky8245
6 ай бұрын
Bodmas is the same for U.K. brackets off division multiplication addition subtraction
@quietlightning4063
6 ай бұрын
This problem really needs multiple parentheses left to right thing in conjunction with Pam Dass. Be very confusing it’s more trouble than it’s worth in my opinion.
@ST-rj8iu
6 ай бұрын
I now know why I flunked math. Left to right and did not know to group MD and AS together. I got 35 doing this. Wish KZitem existed 25 years ago.
@colewright8416
Ай бұрын
I'm a pretty good math mathtition. 9,625×5=48,125 25×5=125 9×5 45. 600×5=3000 45,125+3,000=48,125. That's my long multiplication.
@tsimfang1948
2 ай бұрын
The answer is 203
@kireina29
Жыл бұрын
why not 2x3 first then 18:6 then +2 then x7🤔
@discobear5752
Жыл бұрын
Multiplication and division have equal priority. You do whichever you encounter going from left to right. In this problem, when going from left to right, you encounter 18/2 before you encounter 2X3 so you must first do 18/2.
@gbhxu
Жыл бұрын
That gives you the answer 35. You could even say 7(2+18 / 2x3) >>> 7(20/6) to get the answer 23 and one third
@gbhxu
Жыл бұрын
@@discobear5752 Another poorly written formula. Needs more brackets to define the formula.
@thenetsurferboy
Жыл бұрын
Exactly. Why not get it right? Answer is 35 BOMDAS
@petersearls4443
Жыл бұрын
@@thenetsurferboy using BODMAS or PEMDAS the answer is 203.
@garylee3229
5 ай бұрын
In brackets first multiply first, then divide and multiply by 7=35
@petersearls4443
12 күн бұрын
No, order of operations groups M&D and you process left to right as encountered. 7(2+18÷2*3)→7(2+9*3)→7(2+27)→7*29=203.
@ossier2796
17 күн бұрын
Okay 18/2=9x3=27+2=29x7=203. If I would’ve known about PEMDAS I would’ve been better at math.
@blinoldluv
4 ай бұрын
35!! You solve the ones in the bracket by starting multiplying, then dividing, and adding. The last one is 7 multiply the result in the bracket. It goes like this: 2x3=6. 18÷6=3. 2+3=5. The last one is 7x5=35.
@CSXRobert
3 ай бұрын
Nope! Multiplication and division are performed at the same level left to right, so division comes before multiplication in this problem.
@blinoldluv
3 ай бұрын
@@CSXRobert go back to school, don't embarrasse yourself here🤣
@petersearls4443
Ай бұрын
@@blinoldluvactually you need to read up and realize that M&D have same precedence and go left to right. 18÷2*3=27 and convert divide to multiply and 18*½*3=27.
@ronaldosborne9079
21 күн бұрын
I notice you do not show the multiply symbol between the 7 and the beginning of the brackets. Is it always assumed that it is multiplication, or is it due to you forgetting to put it there?.
@petersearls4443
12 күн бұрын
It is called implied multiplication.
@jaymitchell9993
11 ай бұрын
203
@FootballFanLeanne
4 күн бұрын
Hated math in school, but I'm quite enjoying it now... I got it right. 😊
@dallemon15
6 ай бұрын
Nothing to confuse; nothing to misunderstand. We see and know to computer from left to right, 18 divide-by- 2 multiplly by 3, and we know, 27. The rest is not complicated either.
@VisibleTimes
17 күн бұрын
Learned something new today. It really makes a difference too.😊
@IsrarKhan-sg3yd
6 ай бұрын
My answer was 203 bcz it's solution is as under:- 7(2+18/2*3)= 7(2+9*3)= 7(2+27)= 7(29)=7*29=203 is correct answer. Any division ➗ is firstly converted to multiplication ✖️ by inversting the equation. Hope all understood
@AngInAK
4 ай бұрын
This would've solved soooo many tears during my homework and tests during my school years...
@wkelly3053
6 ай бұрын
More obscure math methods that I never needed to get through all my engineering mathematics and graduate. Engineers use math to create things for humanity. Mathematicians go around in circles and play with numbers, thinking their contrived rules serve a purpose.
@Lee-yy2lr
4 ай бұрын
So,who originally decided the exact order and why that is the exact way? 50 years ago I was taught to do multiplication first within the parenthesis.
@petersearls4443
2 ай бұрын
You were taught incorrectly. Order of Operations was created 400-500 years ago, with final changes made around 1905.
@ojuluodol
Ай бұрын
7(2+18÷2×3)=? 7(2+9×3) 7(2+27) 7(29) 7×29 =203
@khairun-nissayusuf5153
4 ай бұрын
I’m 65 and I got it right. We were taught the BODMAS . Hearing of PEMDAS for the first time
@petersearls4443
12 күн бұрын
theybare both thevsame.
@litabrooker7872
4 ай бұрын
Excellent explanation, many thanks.
@kbchef9205
3 ай бұрын
I got 203. Did it in my head before watching.
@ChrisLichowicz
5 ай бұрын
203. When you didn't grow up with calculators...
@melchor52712
4 ай бұрын
18/2=9x3=27+2= 29x7=203
@tonyb7779
17 күн бұрын
It should clearly state PEMDAS or BODMAS. If not, then there are 2 answers.
@petersearls4443
12 күн бұрын
Incorrect. Both come up with the same answer because divide and multiply are grouped and processed left to right.
@jennywinny4066
2 ай бұрын
Kindly explain the difference between PEMDAS and BODMAS.
@gavindeane3670
2 ай бұрын
There is no difference. They're the same thing. BODMAS just calls the first two steps Brackets Orders rather than Parentheses Exponents.
@samo7780
4 ай бұрын
? = 203 To be nerdly exact
@Noniinthebush
11 күн бұрын
I got mine right using Ramdas 🙏🏼
@rodpetrie1088
4 ай бұрын
Why not just write the formula 7 ( 18/2 X 3 +2 ) in the first place ?
@nancyrogers8377
4 ай бұрын
You always do what's in brackets first. So I went 2 plus 18 = 20. 20 ÷ 2 = 10. 10 × 3 = 30. 7 × 30 = 210. The correct answer is 203? How do I know to minus 7 from 210???
@gavindeane3670
4 ай бұрын
Because the bit in the brackets doesn't evaluate to 30. It evaluates to 29. Multiplication and division have higher priority than addition, so you do the 18÷2×3 first, which is 27. Then add that to the 2, which is 29. Then finally multiply the 29 by 7.
@Godfather-oy2kw
4 ай бұрын
@@gavindeane3670Don’t mind daft priorities, just use your common sense and work from left to right. Correct answer is 210. Don’t mention it.
@gavindeane3670
4 ай бұрын
@@Godfather-oy2kw 7((2+18)/2×3) would be 210, but that's a different question. My common sense tells me to read mathematical notation using the grammar rules of mathematical notation. After all, multiplication having higher precedence than addition is how it's worked for a few centuries now. It makes the sort of mathematics we use in the real world cleaner and more readable. We wouldn't have stuck with the convention for this long if it didn't help.
@JolysaA
26 күн бұрын
7(2+18÷2×3) = 18÷ 2=9 (2+27=29 7×(29=203
@kirkstewart-vf6hg
6 ай бұрын
If I had 20 natural gold nuggets each weighing a penny weight apiece and gold worth 2,035 .00 a ounce . But impure only 22 carate gold and 20 penny weight = 1 oz how much would the gold be worth???
@jase5936
6 ай бұрын
Foid first outer
@SPOOKS28
5 күн бұрын
I don’t even understand it I was brought up with a different maths system plus maths and I don’t mix !
@Kerosenecanada
4 ай бұрын
Why don't they just correctly order the equation? Seems way easier.
@petersearls4443
2 ай бұрын
Because it is used to teach you how to process a poorly constructed expression.
@sandhyal4142
4 ай бұрын
18÷2=9×3=27+2=29×7=203
@brocksprogramming
6 ай бұрын
How do you know when and when not to distribute?❤🎉
@petersearls4443
12 күн бұрын
You don’t want to use distribution when division is involved because you can get wonky results. Simple example 2(4÷2) Distribute: 2(4÷2)→8÷4→2 Don’t distribute: 2(4÷2)→2*2→4
@luisostasuc8135
6 ай бұрын
18/2 is 9x3 is 27+2 is 29x7 is 203. I guess I'll see if my shortcut of working inside instead of distributing works lol
@autumnknight8710
5 ай бұрын
To begin with - what's the use for this equation ?
@petersearls4443
12 күн бұрын
It answers all of the questions in the universe. Shhhhhhhh
@lowellirish
6 ай бұрын
To capitalize on my previous comment? Teach kids how to do 29 x 7= 203 (30 ×7 = 210) - (7) = 203 in their HEAD! Cuz they cant DO IT! They don't know how to do: 20 x 16 = 3 (20×20=400) - (80) = 320 THIS!! Is what needs to ve taught!!
@randallbaker5056
25 күн бұрын
Bodmas.
@Buddha-of8fk
5 ай бұрын
35 using PPMDAS.
@MoussBen-cl4ey
5 ай бұрын
As given in a calculator 203
@jerretwiens26
4 ай бұрын
7x29 =203 Took me three tries
@SarahDunson-y1f
2 ай бұрын
Got 203 my first time, but had to remember the order of operation
@tarsheajordan3201
3 ай бұрын
35 PMDAS I learned this in the 7th grade and never forgot this formula 😊
@petersearls4443
2 ай бұрын
Ahhh but you didn’t remember the divide and multiply have same precedence and are done left to right. 203.
@fernandocalderon48
5 ай бұрын
Well explained, thank you
@raya.pawley3563
Ай бұрын
203. Thank you
@scottmohr4428
5 ай бұрын
35. Simple with PEMDAS!
@petersearls4443
12 күн бұрын
PEMDAS yes 35 no. It’s 203.
@realme74700
6 ай бұрын
literally I'm confused 🥴🥴🥴 I was taught the order as MDAS 1st Multiplication 2nd Division 3rd Addition 4th Subtraction my answer is 35 and it's wrong.. if the order changes so it's DMAS now...why still use the PEMDAS(MDAS) in the lecture when the order of solving the equation has changed? so that there will be no confusion.. 😢😢
@@ThomasVWorm means... multiplication/division can interchange as well as in addition/subtraction? if that so when will I be going to interchange? is there a rule? totally confused 😢
@ThomasVWorm
6 ай бұрын
@@realme74700 yes. Division can be replaced by the multiplication with the reciprocal value: 5÷2 = 5×½ = ½×5 And substraction is the addition of the negative number: 5-2 = 5 + -2 = -2 + 5 Therefore the correct other order of 18÷2×3 is 18×3÷2.
@realme74700
6 ай бұрын
@@ThomasVWorm reciprocal....now my confusion got worst 🤣🤣🤣....but anyways thank you for the explanation sir....I was just curious why my answer was wrong...
@ThomasVWorm
6 ай бұрын
@@realme74700 the reciprocal value of 2 is ½ and of 3 it is ⅓, etc. And vice versa: for ½ it is 2 etc. You have to know this when you want to do ½ ÷ ¼, which is ½ × 4 = 2. If you calculate with fractions division is always turned into the multiplication with the the reciprocal value, because then you only need to multiply. It is just turning the fraction upside down: 3/4 becomes 4/3.
@ahadkmk
6 ай бұрын
I did it right by mental math. 203 was my answer
@federicocerbonim7654
3 ай бұрын
based on PEMDAS, the first operation wouldn't be 7 x the parenthesis ??
@petersearls4443
2 ай бұрын
After you resolve inside the parentheses.
@mattg8788
6 ай бұрын
Mdas multiplication first before division
@petersearls4443
12 күн бұрын
No. They have the same precedence and are handled going left to right.
@suelaasar6367
4 ай бұрын
You can’t times 7 without a x . It wasn’t said what math it was from the start
@petersearls4443
2 ай бұрын
7(xxx) is called implied multiplication.
@hueysimon2726
4 ай бұрын
Powers? The E is for Exponents.
@petersearls4443
2 ай бұрын
Pores and exponents are the same.
@neilattuk
4 ай бұрын
Sorry, but the answer IS 35. Inside parentheses first, so multiplication is first, 2 x 3=6, then division 18/6=3, 2+3=5, then 7x5=35. If the USA does it differently, they are wrong!
@gavindeane3670
4 ай бұрын
Multiplication is not higher priority than division. Interesting that you're criticising the USA for getting 203. Often it's people who were taught in the USA who get the incorrect answer of 35 here, because a common acronym taught in schools there for the order of operations is PEMDAS, which gives the (incorrect) impression that multiplication is done before division. Whereas in many other parts of the world acronyms like BODMAS or BIDMAS or BEDMAS are taught, which don't suggest multiplication before division.
@rozakharazyan7364
3 ай бұрын
18/2=9x3=27+2=25x7=175
@petersearls4443
2 ай бұрын
Oooops. 27+2 is 29 not 25. 😃
@teresadeguzmankhawar4060
Ай бұрын
210....i am 69 yrs old 2+18=20 20÷2=10 10×3=30 × 7= 210
@petersearls4443
Ай бұрын
7(2+18÷2*3)=7(2+9*3)=7(2+27)=7*29=203
@nickfraser4599
2 ай бұрын
Engineers NEVER allow any ambiguity in an equation because often an equation is critical. Unless you know what the equation represents it is an exercise in semantics. That said, you end up with 7*29 or 140 + 63 or 203 but the "truth" is you don't know the logic the person who put the equation together used, thus ambiguous. Use PEMDAS or BODMAS all you wish but never need to
@petersearls4443
12 күн бұрын
But you need to know Order of Operations in order to fix lousy code like this when you find it. Once you know the proper result of the expression, you can check with the end user to make sure it is the answer they were expecting.
@nickfraser4599
12 күн бұрын
@@petersearls4443 oh yes! But that's my point. You code and check the result. Order of operation never enters my head when I code. It is unnecessary added data that can be dispensed with IF you know what you are doing. The only time it enters my head is when someone gives me a formula I know not what for. If I know what it is for, it represents something in the physical universe. If I don't know what it is for how do I know the writer who wrote it used order if operations? For quizzes on KZitem yes but in life no!
@petersearls4443
12 күн бұрын
@@nickfraser4599 yes when you or I code, you are right. But I have worked at companies where a lot of code was previously written and I had to maintain. When I found something like that I would contact the end user and verify the expression they wanted and add parentheses to clarify things. On the rare occasion where it wasn’t providing the correct answer I had to inform them of that and then go through the redesign and testing process. I have no idea how it didn’t get caught the first time, but that didn’t matter it was still my responsibility to correct the situation.
@nickfraser4599
12 күн бұрын
@@petersearls4443 I think we're on the same page!
@dlb19595
Ай бұрын
PLEASE GET TO THE PROBLEM ITSELF!
@DavidGriffiths
5 ай бұрын
BODMAS is far simpler than PEMDAS and gets the same result.
@lg2525
4 ай бұрын
yeah baby, i got it right........................... I love maths.
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