cvcv
Relax 05/03/2025 23:42
The number to be filled in is 4
The difference between two numbers in a row decreases by 1 unit, counting from top to bottom.
8 - 2 = 6.
9 - 4 = 5.
7 - 3 = 4.
9 - 6 = 3.
8 - 6 = 2.
4 - 3 = 1.
So the number to be filled in is 4.