Bond Maths Assessment Book 1 (10-11) Paper 4

[SleepyHead]

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

[ToadMum]

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?

[SleepyHead]

thanks Toadmum

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

Answer to 30 = 46

Answer to 31 = 138

[loobylou]

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.

[SleepyHead]

Thank you loobylou - understood now!

[Qeb2019]

This is one type of VR, the middle one is average of the left and the right.

Hope that helps.