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 Post subject: When do you use BODMASPosted: Tue Jul 22, 2008 1:29 pm

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 Ã· 4 =

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 Post subject: Posted: Tue Jul 22, 2008 2:16 pm

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.

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 BODMASPosted: Tue Jul 22, 2008 2:28 pm

Joined: Tue Jul 22, 2008 1:26 pm
Posts: 2
Location: Kent
Dear Wallasey

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

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