Sudoku Maths Pro 4 - Board Games ( Level 451 - 600 )
Sudoku Maths Pro4 - No ads ( Level 451 - 600 )
How to play
The nine white squares inside the main grid should be filled with the digits 1 through 9. Each digit should appear only once in this main grid. Two of these numbers are already provided for you. Place the other digits in the correct spots so that the mathematical equations work both across and down.