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Post by 4th Chord on Dec 15, 2016 23:29:37 GMT
BODMAS, as drummed into me by my terrifying first year maths teacher.
Brackets (parts of a calculation inside brackets always come first). Orders (numbers involving powers or square roots). Division. Multiplication. Addition. Subtraction.
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Post by curiousgirl on Dec 15, 2016 23:34:00 GMT
Bollocks. It's 80. Unless you're using brackets, which you ain't. It's 80. Its all Greek to me too. But I looked up this BODMAS and found this... I must have done this years ago but I don't remember it. Multiply or Divide before you Add or Subtract. Example:
yes 2 + 5 × 3 = 2 + 15 = 17 not 2 + 5 × 3 = 7 × 3 = 21 (wrong)
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Post by 4th Chord on Dec 15, 2016 23:38:53 GMT
Nope. You always multiply first before adding. It's written incorrectly then. All mathematical formulae use brackets. If the brackets had been in the original post, a cat would have got the answer right. Pish quiz, mate. Err, no, that's not correct either. Pay attention at the back!
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Post by Detroit on Dec 15, 2016 23:39:34 GMT
BODMAS, as drummed into me by my terrifying first year maths teacher. Brackets (parts of a calculation inside brackets always come first). Orders (numbers involving powers or square roots). Division. Multiplication. Addition. Subtraction. THERE'S NO FUCKING BRACKETS IN THE ORIGINAL POST! There doesn't have to be. In school I was always taught to add the brackets where applicable before calculating the answer, or you'd be wrong like you were.
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Post by 4th Chord on Dec 15, 2016 23:40:04 GMT
BODMAS, as drummed into me by my terrifying first year maths teacher. Brackets (parts of a calculation inside brackets always come first). Orders (numbers involving powers or square roots). Division. Multiplication. Addition. Subtraction. THERE'S NO FUCKING BRACKETS IN THE ORIGINAL POST! That's the order of operations for any formula. Note multiplication comes before addition. It's that simple.
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Post by Detroit on Dec 15, 2016 23:42:44 GMT
Did you edit your response?
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Post by 4th Chord on Dec 15, 2016 23:45:50 GMT
THERE'S NO FUCKING BRACKETS IN THE ORIGINAL POST! There doesn't have to be. In school I was always taught to add the brackets where applicable before calculating the answer, or you'd be wrong like you were. Yep. The brackets aren't needed though, as all you do is make sure you multiply before adding, but some teachers would say to add them for clarity. Brackets in formulas are used to overrule all other operations and always come first.
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Post by 4th Chord on Dec 15, 2016 23:47:47 GMT
Did you edit your response? Let me check the security log with the edit history....
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Post by madtom on Dec 15, 2016 23:57:50 GMT
Here is Einstein's theory of General Relativity. Note the use of brackets. I'll take HIS word for it over yours any day of the week, my Embra chum. This is a different situation; the brackets are being used here so that the addition overrides the multiplication. You have inadvertently backed-up what 4th has been telling you
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Post by Tʰᵉ Wᵃˡˡ Oᶠ Dᵉᵃᵗʰ on Dec 15, 2016 23:57:54 GMT
Did you edit your response? I posted my original answer then a few moments later I realised what I did so I corrected it quickly. No other answers/posts were after mine at the time.
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Post by 4th Chord on Dec 15, 2016 23:58:34 GMT
Here is Einstein's theory of General Relativity. Note the use of brackets. I'll take HIS word for it over yours any day of the week, my Embra chum. For a simple arithmetical multiplication and summation the brackets are totally superfluous. Plus that doesn't change the answer to the original question, the answer is still 35. In your scientific equation the multiplication sign is done away with and brackets are used. The rule of BODMAS applies here too.
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Post by madtom on Dec 16, 2016 0:08:03 GMT
This is a different situation; the brackets are being used here so that the addition overrides the multiplication. You have inadvertently backed-up what 4th has been telling you Yer arse. Our waterfront-dwelling chum has been rabbiting on about how the multiplication always comes first. Einstein - he say NO. No, whatever's in the brackets comes before the multiplication, just as 4th said earlier.
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Post by 4th Chord on Dec 16, 2016 0:19:30 GMT
No, whatever's in the brackets comes before the multiplication, just as 4th said earlier. Aye...but there wasn't any feckin brackets in the original post. That's my point. If there had been, this feckin thread would have been pointless. There wouldn't normally be any brackets.
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Post by madtom on Dec 16, 2016 0:23:09 GMT
No, whatever's in the brackets comes before the multiplication, just as 4th said earlier. Aye...but there wasn't any feckin brackets in the original post. That's my point. If there had been, this feckin thread would have been pointless. Ah, but the point is that the brackets aren't required. It was clearly a question designed to catch out the unwary & those that told their maths teacher that it was all a waste of time
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Post by madtom on Dec 16, 2016 9:11:05 GMT
Arithmetic is a branch of mathematics. Is 16 December Groundhog Day?
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