P-arentheses E-xponent M-ultiplication D-ivision A-ddition S-ubtraction Left-to-Right 28÷(3+6÷3×2) Rewritten (proper) 28÷(3+((6÷3)×2)) 28÷(3+((2)×2)) 28÷(3+(4)) 28÷(7) 4

@nathanevans6277

21 күн бұрын

Are you sure. With PEMDAS you do multiplication before you do division. You did division first. 28÷(3+6÷3x2) So written properly it should be 28÷(3+(6÷(2x3))) 28÷(3+(6÷6)) 28÷(3+1) 28 ÷4 =7

Greetings. Mentally, the answer is 4. 28 divided by the bracketed figures. The result of the bracketed portion is 7. Therefore, 28÷7=4.

@TesfayeDube-oe5rj

13 күн бұрын

4

parenthesis first: 3 + 6 * 1/3 * 2= 7 ( I did multiplication first: 1/3 * 2 is 2/3 and 2/3 * 6 is 12/3 or just 4. Then 4 + 3 is 7.) this gives us 28 * (1/7) which is 4 (I just made it multiplication that way division wouldn't confuse us over which we do first)

Within the parentheses, first divide 6 by 3, which is 2; then multiply 2x2, which equals 4, then add 3 which equals 7. The last step is to divide 28 by 7, which Equals 4. Thank you for these problems to challenge our memories and keep our math skills fresh.

@margaretflowers5722

23 күн бұрын

Errors eliminated when I wrote on math sheets PE(M/D)(A/S). Must do (M or D) in order from left to right.

@thenetsurferboy

23 күн бұрын

Wrong order. Multiply first Then divide by 3 within the brackets Then add the 3 within the bracket to give 4 28/4 = 7 Miraculously you got same answer but no marks for method in an exam BOMDAS

@gavindeane3670

22 күн бұрын

​@@thenetsurferboyIt's not miraculous. They followed the PEMDAS process exactly. You have taken advantage of the fact that multiplication is commutative to rearrange 6/3×2 into 6×2/3. Mathematically, what you have done is completely valid and absolutely fine. It just happens to be different to PEMDAS. There are a few valid rearrangements of 6/2×3. You could solve it any of these ways: 6/3×2 6×2/3 2/3×6 2×6/3 Those are all equivalent, but rearranging things like this is beyond the scope of PEMDAS.

@kjellg6532

22 күн бұрын

@@thenetsurferboy “Multiply first, then divide”. Think you should check order of operation once more. (Hint: multiplication and division is the same order)

@seekingthetruth2748

21 күн бұрын

​@thenetsurferboy It's either multiply or divide depending on which is to the left in the parenthesis. Surprising you got the same answer but your process is wrong and will give wrong answers sometimes.

4. (B) In some multiple choices tests, you don't even need to make any calculation. Especially in physics. Just look at the units and eliminate the obviously absurd ones. Like, a question asking for a force and A is a length, B an acceleration, C is energy, D is a scalar and E is «None of the above»

28/7 = 4

b) 4

28 divided by (3 + 6 / 3 x 2) 28 divided by (3 + 2 x 2) 28 divided by (3 + 4) 28 divided by 7 = 4

For a minute there it appeared we were forgetting that left to right within the, "MD" and "AS" sub processes there. Four felt good. These foundational principles when jumbled can really make a mess out of Algebra,.. when adding a negative numer and a positive number the answer is always negative. Can this be correct? (That does not apply to this problem but it does appear to be a standing rule.)

@gavindeane3670

21 күн бұрын

Who told you that??? No, that's not correct at all. -1 is a negative number 1 billion is a positive number If you add them, the result is very much not a negative number at all. It's positive 999,999,999. Maybe you were thinking of multiplying? If you multiply a positive and a negative then the result will be negative.

@Spitfireseven

21 күн бұрын

@@gavindeane3670 You are very kind to correct this. I thought it sounded odd. There are many rules it seems you must simply accept if you are to process certain forms of math properly. I am glad this is not one of them. This means, at least in this one instance, my common sense has not been violated.

Thank you

Fellow middle school math teacher 28: (3+6:3x2) 28: (3+2x2) 28:(3+4) 28:7 4

Thanks

Wow! Even though I'm familiar with PEMDAS, that + sign caught me out. It just looked okay there, with equal hierarchy! 🤦‍♂️

B I read the + sign as a ÷ sign. When I read the question correctly, it made sense.

The correct answer is C

4

got it B 4 easy PEMDAS thanks for the fun

Got it

B. 4

Deu 4 letra B.

Pemdas?

Another PEMDAS cream puff. Thanks Boss.

The is b) 4

I thought it was 4.

b. sp;;;ve dm first then add witinin parentheses. then divide by 7

28÷7=4 so, answer is b) =4

I thought the multiplication was done first before division.

@debbieholoquist2059

24 күн бұрын

Multiplication and division are done in order from left to right. The same is true for addition and subtraction.

@thenetsurferboy

23 күн бұрын

@@debbieholoquist2059 The same as BOMDAS Read from left to right

@thenetsurferboy

23 күн бұрын

It is

@seekingthetruth2748

21 күн бұрын

Multiplication and division are equal so they are done left to right. The same applies for addition and subtraction.

@thenetsurferboy

21 күн бұрын

@@seekingthetruth2748 Read BOMDAS from left to right

4 more than likely

Shocking! The number of Math folks who do not know the offense Aunt Sally committed! Well she was just so Rude when she Left! Oh! make that Left to Right Please Excuse My Dear Sally Leaving Rudely!

@bullard1956

24 күн бұрын

4

It's 4

Why PEMDAS and not BIDMAS / BODMAS? PEMDAS seems odd as the D happens before the M doesn’t it? Answer is b) 4 👍🏼

@gavindeane3670

21 күн бұрын

Why not? They all mean the same thing. There are lots of variations of the acronym: PEMDAS, BODMAS, BIDMAS, GEMDAS, BEDMAS, PEMA, BIPS, BOPS, GEMS, etc... They're all just different names for the same thing.

@AlexBennettUK

21 күн бұрын

⁠@@gavindeane3670it was a genuine question. BODMAS / BIDMAS lists the actions in order so I was wondering why PEMDAS wasn’t PEDMAS (listing them in order).

@gavindeane3670

21 күн бұрын

@@AlexBennettUK The order in BIDMAS is Brackets, then Indices, then Division & Multiplication, then Addition & Subtraction The order in PEMDAS is Parentheses, then Exponents, then Multiplication & Division, then Addition & Subtraction That's the same. It's a 4 step process not a 6 step process. The DM step in BIDMAS is identical to the MD step in PEMDAS. There's no hierarchy between multiplication and division - the BIDMAS/PEMDAS process tells you to calculate all the divisions and multiplications together, working left to right. MD vs DM in the acronym doesn't change the calculations. Most of the common 6 letter forms of the acronym, like BIDMAS and PEMDAS, do sometimes crop up with the D and M reversed - so sometimes you'll see people talking about PEDMAS or BIMDAS.

@AlexBennettUK

21 күн бұрын

@@gavindeane3670thanks Gavin

4 is the answer

Ans =4.

7

C. The answer is 7

I GOT 28/7=2. I THINK STUPIDY WAS MY PROBLEM, NOT THE ORDER OF OPERATIONS. MUST HAVE BEEN ME EATING (PB + HERSHEY'S SYRUP) INSTED OF EATING REECES PB CUPS, THE CORRECT WAY OF DOING THAT.

4 b

28÷7=4

C

b

The answer is 4

I figured 7 Oops!

And is 4 is it correct

With PEMDAS you do multiplication before you do division. 28÷(3+6÷3x2) So written properly it should be 28÷(3+(6÷(2x3))) 28÷(3+(6÷6)) 28÷(3+1) 28 ÷4 =7 I think this is wrong. It should be PEDMAS. In which case it would be 4

@gavindeane3670

21 күн бұрын

That's a common and understandable misconception, but that's not how PEMDAS works. It's P-E-MD-AS. It's a 4 step process not a 6 step process. In the MD step you calculate all the multiplications and divisions, working from left to right. PEDMAS and PEMDAS are the same thing.

@nathanevans6277

21 күн бұрын

@@gavindeane3670 thanks for the clarification. That makes sense. 👍

Ans is 7 or 4, u confused me.. it must be 4 not 7..

@enriqueiii9209

24 күн бұрын

work left to right what ever you see first. x ÷ , ÷ x, + -, - + Answer is 4

@ishcdas2

24 күн бұрын

@@enriqueiii9209 thanks

@topkatz58

24 күн бұрын

I had one person with regards to order of operations actually wrote MDAS and they underlined the M as to why multiplication is done first. If you do the research, you will discover that multiplication and division are equal in priority. And the only way to decide which is done first is which one comes first starting from the left.

@thenetsurferboy

23 күн бұрын

@@topkatz58 Are you reading BOMDAS backwards?

Whew! I got it right 😊

B of course

I believe it's c)7

14

I got 4 at a glance in less than 10 seconds, so I was thinking I am a genius but I am not is only that this maths is less than basic not worth all the colourful ink used.

@redblack8414

24 күн бұрын

@mauriziograndi1750 I think that the goal here was to teach the order of operations. Many people fail at this. If you know the order of operations, I agree with you, the problem is easily solved in a few seconds.

7 of course.

@erniemorris9991

24 күн бұрын

Nope

28

C = 7

@joepkortekaas8813

24 күн бұрын

Try again!

mathematical masturbation. it makes no difference if the 'answer' is 4 or 7 I have my math workbooks from 1963 and Multiplication and Division were taught as separate operations, never together just left or right.

@gerardjlaw

20 күн бұрын

Exactly. Nobody who actually uses maths would dream of relying on these cretinous rules. We use parentheses.

@timfronimos459

20 күн бұрын

@@gerardjlaw Roger that.

b) 4

4

28/7 = 4

B

7

@shaamraat2691

16 күн бұрын

4

@shaamraat2691

16 күн бұрын

It was 4 by mistake I selected 7 . The answer is 4 because in the braces we do the division first 6÷3 =2 now multiple 2×2 = 4. Now add 3+4=7. In the end divide 28 ÷7= 4

b) 4

4

4

4

4

4

4

4

B) 4

B)4

B)4

4

4

4

4

4

4

4

4

4

4

4

4

B

B

B

B

B

7

7

7

7

7