8 ÷ 2(2+2) = ?
- Joe Shlabotnik
- Hall Of Famer
- Posts: 24291
- Joined: October 12 06, 2:21 pm
- Location: Baseball Ref Bullpen
- Contact:
Re: 8 ÷ 2(2+2) = ?
It's blue and black.
- CardsofSTL
- All Hail the GDT Master
- Posts: 70085
- Joined: April 26 11, 6:06 am
- Location: Columbus, OH
Re: 8 ÷ 2(2+2) = ?
Parentheses first then work left to right. The answer is 16.
- stlouie_lipp
- Hallelujah Brother
- Posts: 13380
- Joined: April 17 06, 7:36 pm
Re: 8 ÷ 2(2+2) = ?
CardsofSTL wrote:Parentheses first then work left to right. The answer is 16.

- lukethedrifter
- darjeeling sipping elite
- Posts: 37260
- Joined: October 17 06, 11:19 am
- Location: Huis Clos
Re: 8 ÷ 2(2+2) = ?
Thems the rules.CardsofSTL wrote:Parentheses first then work left to right. The answer is 16.
- Joe Shlabotnik
- Hall Of Famer
- Posts: 24291
- Joined: October 12 06, 2:21 pm
- Location: Baseball Ref Bullpen
- Contact:
Re: 8 ÷ 2(2+2) = ?
Parenthesis first means getting rid of 2(4) first and that gets you to 1 and that leads me to my original answer: blue and black.CardsofSTL wrote:Parentheses first then work left to right. The answer is 16.
- obucard
- Perennial All-Star
- Posts: 8181
- Joined: April 18 06, 11:04 pm
- Location: Central AR
Re: 8 ÷ 2(2+2) = ?
My understanding that both were done at the same time, left to right; addition and subtraction are done the same way.G. Keenan wrote:Whether implicit or explicit, it's still multiplication, so shouldn't it always come before division?Popeye_Card wrote:OK, I see how they are getting there now. I had always been taught to act on implied multiplication first.G. Keenan wrote:1 is my answer as well. The article gets at how one might make a case for 16. Apparently, Google and WolframAlpha calculators will give you 16.Popeye_Card wrote:Following normal order of operations, it is clearly 1. I'm not completely sure how people get 16 unless they are reading the divide sign as a + sign.
Seems to come down to how you handle "implicit multiplication."
- wart57
- just can't quit you.
- Posts: 25076
- Joined: April 18 06, 4:33 pm
- Location: Lost
Re: 8 ÷ 2(2+2) = ?
Laurel.
- GeddyWrox
- Caught you a delicious bass
- Posts: 14716
- Joined: April 20 06, 8:43 pm
- Location: Please use blue font for the sarcasm impaired.
Re: 8 ÷ 2(2+2) = ?
Apparently I went to the maths in 1917
- IMADreamer
- Has an anecdote about a townie he overheard.
- Posts: 12906
- Joined: December 6 10, 1:09 am
- Location: Illinois
Re: 8 ÷ 2(2+2) = ?
Wolfram gives me 16. It's 16.
- stlouie_lipp
- Hallelujah Brother
- Posts: 13380
- Joined: April 17 06, 7:36 pm
Re: 8 ÷ 2(2+2) = ?
This confirms what I've thought all along: math sucks.





