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 Post subject: StuckPosted: Wed Oct 26, 2011 10:31 am

Joined: Fri Aug 05, 2011 7:47 am
Posts: 14
Hi guys

Question is.

21 (26) 8
27 (36) 9
24 ( ) 6

Does anyone know how we arrive at this answer?

Thanks.

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 Post subject: Re: StuckPosted: Wed Oct 26, 2011 10:34 am

Joined: Thu Oct 02, 2008 9:09 pm
Posts: 69
Location: Gloucestershire
21-8=13; 13*2=26
27-9=18; 18*2=36
24-6=18; 18*2=36

Hope this is right!

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 Post subject: Re: StuckPosted: Wed Oct 26, 2011 10:41 am

Joined: Mon Jun 18, 2007 2:32 pm
Posts: 6966
Location: East Kent
I would go with red's solution

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 Post subject: Re: StuckPosted: Wed Oct 26, 2011 5:47 pm

Joined: Sun Jan 13, 2008 6:18 pm
Posts: 238
Location: Gloucestershire
Yes. Left number minus right number then double your answer.

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 Post subject: Re: StuckPosted: Thu Oct 27, 2011 10:36 am

Joined: Fri Aug 05, 2011 7:47 am
Posts: 14
Many thanks all.

Sorry for the belated reply. My daughter is doing Bucks exam today!

Flosi

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 Post subject: Re: StuckPosted: Thu Nov 03, 2011 8:49 pm

Joined: Tue Feb 22, 2011 11:06 pm
Posts: 75
i ask my DS to do this questions she done this way

21+21=42 , 8+8=16,42-16=26

27+27=54 , 9+9=18 , 54-18=36

24+24=48 , 6+6=12 ,48-12=36

is this a right way to do aswell?thankyou.

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 Post subject: Re: StuckPosted: Thu Nov 03, 2011 9:34 pm

Joined: Mon Aug 22, 2011 12:12 pm
Posts: 366
I would go with red's method as in our county (lincs), these questions have to be completed in 2 stages

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 Post subject: Re: StuckPosted: Fri Nov 04, 2011 7:45 am

Joined: Mon Jan 30, 2006 4:07 pm
Posts: 2660
Dear Senthi

Although your method works it is not an efficient way of working out the answer. Reds version is less time consuming.

Dear Stocky

These types of questions when set by GL Assessment as the test provider, can be 1, 2 or 3 operations/stages.

Patricia

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 Post subject: Re: StuckPosted: Fri Nov 04, 2011 8:37 am

Joined: Mon Aug 22, 2011 12:12 pm
Posts: 366
ooh cheers Patricia, I've been misadvised along the way, as was definitely told 2 stages. Whilst my DD has just passed, my DS sits in Sep 12 so that will help with our prep. Thanks again

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 Post subject: Re: StuckPosted: Fri Nov 04, 2011 1:19 pm

Joined: Tue Feb 22, 2011 11:06 pm
Posts: 75
thank you patricia.

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