a2zinterviews

5.	Which number goes in the empty box?

Answer

3 The value in each lower box represents the sum of the squares of the two numbers directly above it.

6.	Which number goes in the empty box?

Answer

5 In rows, the sum of the left and centre value equals he right hand value for the first and third rows, in the second and fourth rows the right hand value equals the difference between the left and centre numbers.