2
6  7  9  16  
4  3  2  4  
6  11 5  32  
18 10 13 ??    

The numbers are in a square 4 by 4

How do I find the missing number as I can't see any link between the numbers. I have tried everything I can think of.

This is level 9, question 78 for Think Different on Android

0
3

It appears that each column uses the same algebraic expression on the first 3 numbers, with the last row being a total.

  • First Column: (6 x 4) - 6 = 18
  • Second Column: (7 x 3) - 11 = 10
  • Third Column: (9 x 2) - 5 = 13

So, for the fourth column, using the same pattern, you'd have:

(16 x 4) - 32 = ?

64 - 32 = 32.

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