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 Post subject: Do they really ask such hard questions?Posted: Sat Apr 21, 2012 1:46 pm

Joined: Thu Aug 19, 2010 12:57 pm
Posts: 1446
I'm working through some VR papers with DS although some of the questions seem more akin to maths or NVR. I've been teaching him strategies to work out the answers to all the questions and he is improving, although it is slow progress.

The issue I'm having is with questions like this:

4=15
6=35
8=63

Now obviously this is an easy one but I've found one where the formula was:

1.5n x 5

And another:

1/2(n-2)

After some time I'm sure it would dawn on me what the answer is but it would never cross my son's mind to multiply N by a number that wasn't an integer. So do they really get this complicated? The book is for 11+ and if he were to get such a question then he'd spend a huge amount of time trying to work it out!

Also, is this really VR?

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 Post subject: Re: Do they really ask such hard questions?Posted: Sat Apr 21, 2012 1:57 pm

Joined: Thu Aug 19, 2010 12:57 pm
Posts: 1446
The first one is one and a half N, not 1. 5nx5

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 Post subject: Re: Do they really ask such hard questions?Posted: Sat Apr 21, 2012 3:24 pm

Joined: Wed Aug 01, 2007 11:19 am
Posts: 888
1.5n x 5 is the same as 7.5n - so I guess if you looked at it and were thinking, oh that must be some multiple of n because it's big, you might try 7n and 8n and spot that it was halfway. Challenging though.

1/2(n-2) is half n take away 1, which doesn't seem that awkward really.

I have no idea though what sort of difficulty actually appears in the papers - neither of my two who have sat them have managed that level of feedback!

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 Post subject: Re: Do they really ask such hard questions?Posted: Sat Apr 21, 2012 4:32 pm

Joined: Thu Aug 19, 2010 12:57 pm
Posts: 1446
Oh yeh! so why did they write the example with the brackets to confuse dumb wits like me!

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 Post subject: Re: Do they really ask such hard questions?Posted: Sat Apr 21, 2012 10:32 pm

Joined: Sun Mar 18, 2012 5:30 pm
Posts: 228
I taught my dc algebra when child was 10, simple algebra mind. Not sure as to the level that may come up in 11+ exams mind.

7x+15=50. For example...

Find x

On the other hand, who in their right mind would want to find their 'x'....

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 Post subject: Re: Do they really ask such hard questions?Posted: Sun Apr 22, 2012 7:33 am

Joined: Thu Aug 19, 2010 12:57 pm
Posts: 1446
Paramjeet wrote:
I taught my dc algebra when child was 10, simple algebra mind. Not sure as to the level that may come up in 11+ exams mind.

7x+15=50. For example...

Find x

On the other hand, who in their right mind would want to find their 'x'....

He knows simple algebra but it seems to make little difference when he comes to these sums.

And why is this in a VR paper?!

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 Post subject: Re: Do they really ask such hard questions?Posted: Sun Apr 22, 2012 7:38 am

Joined: Fri Sep 15, 2006 8:51 am
Posts: 8119
Paramjeet wrote:

Find x

.

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 Post subject: Re: Do they really ask such hard questions?Posted: Sun Apr 22, 2012 11:54 am

Joined: Sun Mar 18, 2012 5:30 pm
Posts: 228
There are loads more like this one, I will dig them out

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 Post subject: Re: Do they really ask such hard questions?Posted: Sun Apr 22, 2012 9:04 pm

Joined: Sun Jan 13, 2008 6:18 pm
Posts: 238
Location: Gloucestershire
This is my profile pic on Tw*tt*r.

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 Post subject: Re: Do they really ask such hard questions?Posted: Sun Apr 22, 2012 9:31 pm

Joined: Tue Sep 27, 2011 1:21 pm
Posts: 67
hermanmunster wrote:
Paramjeet wrote:

Find x

.

Do these really turn up?
It is to do with pythogorus theorem i think, which is taught quite later in school.
Thanks,

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