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Mathematics 16 Online
OpenStudy (mason):

6÷2(1+2)=

OpenStudy (anonymous):

1

OpenStudy (anonymous):

This meme needs to die. Also it's not 1.

OpenStudy (anonymous):

why is it not 1?

OpenStudy (anonymous):

Because order of operations. \[6\div 2(1+2) = 6\div2(3) =3(3)\] Multiplication and division is from left to right, not right to left

OpenStudy (anonymous):

Or if you prefer: \[6\div 2(1+2) = 6\div 2(3) = 6 \div 2\times 3 = 3 \times 3 = 9\]

OpenStudy (anonymous):

http://www.wolframalpha.com/input/?i=Divide [6%2C2%281%2B2%29]

OpenStudy (anonymous):

polpak is correct

OpenStudy (anonymous):

nope, wolfram alpha begs to differ.

OpenStudy (anonymous):

You parsed it incorrectly.

OpenStudy (anonymous):

http://www.wolframalpha.com/input/?i=Divide [2%2C3]

OpenStudy (anonymous):

Try again.

OpenStudy (anonymous):

okay, you are right. I tried it in google. and it gives 9.

OpenStudy (anonymous):

I do not understand the argument abt left or right

OpenStudy (anonymous):

in a series of operations, division is to be carried out first and then multiplication as per BODMAS

OpenStudy (anonymous):

no, they both have equal weight from left-to-right.

OpenStudy (anonymous):

http://en.wikipedia.org/wiki/Order_of_operations

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