Easy PEMDAS questions but I cant get the right answer

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Source: — Problem Solving |

Newbie | Next Rank: 10 Posts
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Joined: Wed Dec 17, 2008 8:59 am
[quote="Di"]1. 54 / 6 * 3 - 3(5-13) = ?
I keep getting 27 as an answer, this is incorrect - help :cry:[/quote]

If the question is
54/6[/img]3-3(5-13) then I would solve this way.
first half
54/6[img]3
ie 9x3 =36

second half

3(5-13)
3(8)
3x8=24

36-24=12

Is the answer =12

Let me know if you need further explanation.
[/img]

Junior | Next Rank: 30 Posts
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by keeyu2 » Wed Mar 18, 2009 6:57 am
9x3= 36?

Junior | Next Rank: 30 Posts
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Joined: Tue Feb 24, 2009 3:29 pm
Di wrote:1. 54 / 6 * 3 - 3(5-13) = ?
I keep getting 27 as an answer, this is incorrect - help :cry:
If the 54/6 is by itself then the correct solution is as follows:

Move Left to Right with Multiplication/Division

Left Side:

54/6 = 9

9 * 3 = 27

Right Side:

-15 + 39

Combine: 27 - 15 + 39 = 51

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by Di » Wed Mar 18, 2009 5:07 pm
Thanks!!

51 is the right answer