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 Post subject: When do you use BODMAS
PostPosted: Tue Jul 22, 2008 1:29 pm 
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Joined: Tue Jul 22, 2008 1:26 pm
Posts: 2
Location: Kent
Hi

I have a few maths questions that my son and his friends had different answers to. Some used BODMAS hence the difference. My question is when is BODMAS used? The questions are below:

7x - x + 9x =

4 + 3 x 7 =

8 + 28 ÷ 4 =


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PostPosted: Tue Jul 22, 2008 2:16 pm 
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Joined: Mon Dec 31, 2007 1:28 am
Posts: 91
Location: Wirral
BODMAS would always be used. If the question needs a lower importance operator such as addition to be done first then brackets would be put round that part, otherwise it would be done after the higher importance operator.

In your examples:

7x - x + 9x = 15x addition and subtraction can be done in either order as the result would be the same

4 + 3 x 7 = 25 The multiplication would be done first

8 + 28 / 4 = 15 The division would be done first


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 Post subject: When do you use BODMAS
PostPosted: Tue Jul 22, 2008 2:28 pm 
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Joined: Tue Jul 22, 2008 1:26 pm
Posts: 2
Location: Kent
Dear Wallasey

Thank you very much for your reply. Those were the answers my son got.

I'm sure he'll be pleased that he got them right.


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