Solution

155182

Problem / game
Difference of Two Squares Back to problem
First name
Maysa, Rizqin
School
Greenacre Public School
Country
Australia
Age
11

We found that the difference between the square numbers was always a multiple of twelve for 3, and for 5 it would be 20. Also, the difference was always the top centre number multiplied by 4, as you can see below.

2 3 4 4 5 6
V V V V
4 16 16 36
＞12 ＜ > 20 <