3 + (12 divided by 4)squared times 2 = ? Order of Operations BASIC MATH!

[@RustyWalker]

Brackets: (12/4)=3 Orders: 3^2=9 D/M: 9*2=18 A/S: 3+18=21 Final answer=21

[@rmar67]

12/4=3 3^2=9 9*2=18 18+3=21

[@btk1243]

I think these PEMDAS problems lead to students being 'confused' when they start Algebra . . . Why? . . . In algebra, multiplication is often implied (eg- coefficient next to a variable) and division problems are often written as fractions . . . Also, as you solve an algebra problem, you may combine two like terms via addition, before dealing with the division (written as a fraction) in an adjacent term . . . So the idea that you always do parentheses, exponents, multiplication, division, etc. in a certain order, doesn't hold true for the process of breaking down an algebra problem. I think overemphasis of PEMDAS leads to confusion for many young people starting Algebra.

[@ralphmelvin1046]

I couldn't agree with you more my friend

[@mylittlepitbull3143]

Yeah. I was tops in the nation in math and a math major in college and this stuff bugs me too.

[@gavindeane3670]

Yep. There are two completely different things people are learning when they are taught PEMDAS, but I'm not even sure that teachers always appreciate the distinction. The first thing is the precedence rules, like multiplication having bigger precedence than addition. This is critical. It is the entire basis of mathematical notation. It is the reason WHY we can elide multiplication symbols and use implied multiplication. Students NEED to understand the precedence grammar. The second thing, which gets far more emphasis, is a stupidly rigid sequence in which the individual calculations are to be performed. This is often not important at all, and certainly leads to bizarre confusions and misconceptions. I think it would a great idea if all these silly acronyms like PEMDAS just went away and were never seen again.

[@MichaelCampbell-q2h]

I’m dyslexic and 65 years old with no education, but learning the language of mathematics thank you for your efforts❤

[@russelllomando8460]

got 21 in my head in 2 seconds easy PEMDAS once PEMDAS is memorized, piece of cake thanks for the fun.

[@devonwilson5776]

Greetings. The answer is 21. 3+(12÷4)^2×2= 3+(12/4)^2×2= 3+(3)^2×2= 3+9×2= 3+18=21. Blessings.

[@KW-gb9cd]

(12/4)² = 3² = 9, 3 + 9 · 2 = 3 + 18 = 21.

[@raya.pawley3563]

Thank you

[@Stylux-z1p]

⟪3 + {([12 : 4])² · 2}⟫ 1st : [12 : 4] = 3 2nd: (3)² = 9 3rd: {9 · 2} = 18 4th: ⟪3 + 18⟫ = 21✅

[@Poult100]

Wow! I know about PEMDAS but I still added the 3 to the 9 before multiplying by 2! Thats a mean way to drum it home! Thanks John! 😏

[@pysankar]

I have a question. Not really related directly to this video but wanted to post it where "math people" would see it. Say I have the following expression to solve. 10÷5(4x+7x+6)=?. After completing the work inside the parentheses, I'll have 10÷5(11x+6). At this time I always feel like I should apply the distributive property in order to eliminate the parentheses and get 10÷55x+30. OR should I go from left to right first and do the divsion first and THEN apply the distributive property and get 22x+12? I hope my little example here made sense.

[@andrewsniimensaamoo253]

Please follow the Order of Operations (PEMDAS). You tackle the operation from left to right. The M&D and A& S are tackled according to which comes first.

[@pysankar]

@@andrewsniimensaamoo253 But still I always feel like I should eliminate the parentheses before proceeding with the rest of it. But you're saying I should do the division first before applying the distributive property and 22x+12 would be the correct answer?

[@dazartingstall6680]

@@andrewsniimensaamoo253 This is one situation where even professional mathematicians disagree, so it's not quite that simple. Take a situation such as x ÷ y(z) One opinion is that we should treat the implied multiplication as having the same precedence as an explicit one, so: x ÷ y × z = (x/y) × z The other opinion is that the y should be treated as a coefficient, as we would with, say, the 5 in "5n". That gives it higher precedence. So: x ÷ y(z) = x ÷ (yz) My own assumption is that where "÷" is used instead of the more advanced-maths expression of divisions as fractions, we're probably justified in reading it in the first way, but it's not guaranteed.

[@pysankar]

Hey Mr. KZbin Math Man!! Care to chime in on this one?

[@andymelendez9757]

Thanks for PEMDAS. I did it from memory!

[@renaeschuchard9824]

3+(12÷4)sq ×2 = 3+ (9)2= 3+18=21

[@markdevries670]

21 took me way less than the length of this video. But then again, YT pay after 8 minutes, so I'm told.

[@enriqueiii9209]

Me Too, I wish he did the problem when he is explaining each letter.

[@mylittlepitbull3143]

Solve the problem in the thumbnail then click on it for the comments

[@irishhi8333]

He is explaining for first time viewers in each video, you know. I simply skip to the point I want to see. Only takes a few seconds, at most.

[@enriqueiii9209]

@@irishhi8333 I watch a math teacher and he tells you the meaning of every letter while doing the problem and he takes about four or five mins. to do the problem. Just saying.

[@valerieobanya5172]

B - Brackets O - Of D - Division M - Multiplication A - Addition S - Subtraction 3 +(12÷4)^2 ×2 12÷4 3^2 9×2 18+3 =21

[@denisecraig5102]

72. If you are telling me you are giving me $3 and you want me to add my share of $12 with 3 others that would give me $6. Then you want me to square it 2 times 36 + 36 is 72. PEMDAS has nothing to do with actual transactions. That's why many cant balance a register and need the machine to calculate change. PEMDAS is use to solve dispute in what written numbers left to right means. Before pemdas it was left to right and if I wanted you to add or multiply, divide, subtract multiple numbers it would be in brackets. Simple as that. But some dyslexic person want to claim genius and confuse something simple.

[@DoubleQCubed-d7o]

* or / first but () is more importent

[@dynamicsports3787]

Watching from India🇮🇳.... I wanna be part of you coaching/tution.....is it possible sir....?

[@sofiareisbraga]

This one is easy! 21!

[@dazartingstall6680]

3 + (12 ÷ 4)² × 2 3 + 9 × 2 3 + 18 21

[@inatwho]

PEMDAS 21

[@magdalenallull3524]

21 final answer

[@Qazxswer68]

42!

[@mega2034]

Them it, I’d minus the 3

[@vashstampeed424]

I glanced at it and did it in my head in 2 seconds...... That is 5th 6th grade stuff...

[@stevendebettencourt7651]

… from now on, order of operations problems don’t get explanations. 3 + (12 / 4)^2 * 2 3 + (3)^2 * 2 3 + 3^2 * 2 3 + 9 * 2 3 + 18 21

[@georgecattani7199]

=21

[@ResourcefulNomad]

21

[@mega2034]

15

[@siminhayatifallah4075]

Hooray to myself….

[@joejoe8322]

Actually it's 21

[@duaneslack9820]

Got it …PEMDAS!

[@DCOneFourSeven]

Aunt Sally, you are excused.

[@lilianaprina5991]

Answer is 21 done with memory is too easy. Four operations an easy problem for high school students. First is to solve parenthesis with divisiona and exponent finally. Second is to multiply and finally is addition.

[@larrystuder6378]

Absolutely, also easy, in my head. I did work it twice, because when I gave it a second look, I added the first 3 to the 9. But, PEMDAS, and there it was.

[@modinali3987]

Your's way of explanation is time wasting & difficult than the equations 👎

[@sithembisomagadla9483]

BODMAS IF DONT KNOW IT FRGET GO AND TAKE YOUR CHANGE.

[@chrisdissanayake6979]

Answer: 21 --------- 3 +(12➗ 4)^2 x2 3+ 3^2 x2 3+ 9x2 3 + 18 = 21

[@bertthebird2341]

Please don't so this PEMDAS thing all the time. Just make a separate video about that.

[@geogeo6071]

A real mathematician would have written 3+((12/4)^2 x 2) thus resolving any ambiguity and eliminating the stupidity of PEMDAS.

[@gavindeane3670]

No they wouldn't. No mathematician has any difficulty with the idea that multiplication has higher precedence than addition. It's utterly ubiquitous, elementary, and fundamental to the way mathematics is written.

[@brianburgess3231]

21

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21

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21

[@gpil2000]

21

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21

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21

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18

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21

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21

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21

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21

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21

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21

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21

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21

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21

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21

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21

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21

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21

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21

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21