You’re ready to develop mathematical knowledge in the Rullo game. Combining numbers and ratios of certain levels to come up against what you need to do will sum up and remove. There are numbers in the square and round boxes on the screen. Square boxes are located at the front of the rows and columns and inside the round boxes. You should ensure that the horizontal and vertical sum of the numbers in the circular boxes is equal to the sum of the numbers at the beginning of the row and column.