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 Post subject: Bond Maths Assessment Book 1 (10-11) Paper 4Posted: Mon Aug 05, 2019 11:30 am

Joined: Thu Oct 18, 2012 9:41 am
Posts: 482
Hello

This query relates to questions 30-31

These questions are all number squares, row 1 and row 2 totals are different, I thought they had to be the same to work out the missing number in x.
Am I missing something really obvious here?

Question 30

The numbers are in a grid, reading left to right (sorry it's not aligned below)

38 | 34 | 30
42 | 38 | 34
x | 42 | 38

Find x

Question 31

102 | 120 | y
84 | 102 | 120
66 | 84 | 102

find y

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 Post subject: Re: Bond Maths Assessment Book 1 (10-11) Paper 4Posted: Mon Aug 05, 2019 11:59 am

Joined: Wed Jan 18, 2012 11:41 am
Posts: 10428
Location: Essex
Do they have to add up to the same thing?

There is definitely a pattern L - R and up - down (and diagonally, for that matter, but ignore that for a moment).

Do the answers given agree with just finding numbers which fit the pattern in each square?

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 Post subject: Re: Bond Maths Assessment Book 1 (10-11) Paper 4Posted: Mon Aug 05, 2019 12:08 pm

Joined: Thu Oct 18, 2012 9:41 am
Posts: 482

I assumed that columns, rows and diagonals all add up to the same thing, but doesn't seem so

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 Post subject: Re: Bond Maths Assessment Book 1 (10-11) Paper 4Posted: Mon Aug 05, 2019 12:10 pm

Joined: Thu Nov 27, 2014 4:04 pm
Posts: 1977
It's not a number square like sudoku, it's just a grid.
Question 1:
The same pattern goes across each row.
A different pattern goes down each column.
Both give 46 for x.

Same for question 2.

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 Post subject: Re: Bond Maths Assessment Book 1 (10-11) Paper 4Posted: Tue Aug 06, 2019 9:03 am

Joined: Thu Oct 18, 2012 9:41 am
Posts: 482
Thank you loobylou - understood now!

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 Post subject: Re: Bond Maths Assessment Book 1 (10-11) Paper 4Posted: Tue Aug 06, 2019 9:34 am

Joined: Mon Dec 24, 2018 3:27 pm
Posts: 45
This is one type of VR, the middle one is average of the left and the right.

Hope that helps.

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