6÷2（2+1）=？ - Page 7 - TennisForum.com
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Old Oct 10th, 2012, 08:32 PM
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Re: 6÷2（2+1）=？

It's 1

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Old Oct 10th, 2012, 08:32 PM
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Re: 6÷2（2+1）=？

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Originally Posted by young_gunner913 View Post
We can end the thread with that statement and the correct answer: 9.
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Old Oct 10th, 2012, 08:32 PM
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Re: 6÷2（2+1）=？

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Originally Posted by Mary Cherry. View Post
Well yes, that's how you know to times the 2 by 3. I still don't get how you can rewrite the question and add the x in yourself though. The 2 is grouped with what's in the bracket, not with the 6.
We can because A(B) = A x B basically
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Old Oct 10th, 2012, 08:33 PM
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Re: 6÷2（2+1）=？

Quote:
Originally Posted by Mary Cherry. View Post
I still don't get how you can put 2(2+1) as 2 x 3. I know the number outside the bracket means you should times it by what's inside the bracket and since brackets come first, shouldn't you do 2(3) before the division?

I don't remember them teaching us that you get marks for re-writing the question.
2x(2+1)= 2x2 + 2 = 4 + 2 = 6 as well.

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Originally Posted by silverwhite View Post
What's inside the brackets comes first

Is that by following rules or common sense?
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Old Oct 10th, 2012, 08:33 PM
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Re: 6÷2（2+1）=？

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Old Oct 10th, 2012, 08:34 PM
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Re: 6÷2（2+1）=？

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Originally Posted by Mary Cherry. View Post
Well yes, that's how you know to times the 2 by 3. I still don't get how you can rewrite the question and add the x in yourself though. The 2 is grouped with what's in the bracket, not with the 6.
No it's not.

6÷2(2+1) is the same as writing 6÷2 x (3).

The first two are grouped and then the second. You go in order of operations at that point and you go from left to right so you divide first and then multiply.

This problem is pretty clear if you know the rules properly

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Old Oct 10th, 2012, 08:36 PM
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Re: 6÷2（2+1）=？

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Originally Posted by PhilePhile View Post
Is that by following rules or common sense?
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Old Oct 10th, 2012, 08:38 PM
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Re: 6÷2（2+1）=？

I think this thread should just burn to death in a pile of random gifs.

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Old Oct 10th, 2012, 08:44 PM
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Re: 6÷2（2+1）=？

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Originally Posted by silverwhite View Post
We can because A(B) = A x B basically
Like I said, I know that but removing the bracket and writing it as 2 x 3 separates them both so the 6 gets involved with the 2 and 3 is like "wtf bitch back off" and 7 ate 9 and they all got into a fight.
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Old Oct 10th, 2012, 08:47 PM
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Re: 6÷2（2+1）=？

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Originally Posted by Mary Cherry. View Post
Then the thread is reopen for discussion due to the answer being incorrect.

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Old Oct 10th, 2012, 08:49 PM
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Re: 6÷2（2+1）=？

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Originally Posted by Mary Cherry. View Post
Like I said, I know that but removing the bracket and writing it as 2 x 3 separates them both so the 6 gets involved with the 2 and 3 is like "wtf bitch back off" and 7 ate 9 and they all got into a fight.
The brackets don't give whatever is adjacent to them any special priority when it comes to multiplication. Read Inger67's post for a more detailed explanation
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Old Oct 10th, 2012, 08:52 PM
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Re: 6÷2（2+1）=？

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Originally Posted by young_gunner913 View Post
Then the thread is reopen for discussion due to the answer being incorrect.
Life is incorrect
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Old Oct 10th, 2012, 08:56 PM
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Re: 6÷2（2+1）=？

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Life is incorrect

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Old Oct 10th, 2012, 09:18 PM
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Re: 6÷2（2+1）=？

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It is a math problem that appeared on facebook some time ago, some people argue to death and defriend each other arguing which is the correct answer for it, 9 or 1. Scandalous.

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Old Oct 10th, 2012, 11:32 PM
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Re: 6÷2（2+1）=？

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