Welcome to the new online game Sum Master in which an interesting mathematical puzzle awaits you. Before you on the screen will be visible a playing field inside a broken into cells. All of them will be filled with numbers. Outside the game field you will see the numbers. Explore them carefully. Now you will need to mark the number of numbers outside the game field in total in each row and the column. Having completed this condition, you will get glasses in the Sum Master game and go to the next level of the game.
