Amazing Sudocu Math! Wow~

Sudoku was familiar! Enjoy Sudoku as an arithmetic sum fun now. Each row and column to prevent duplicate number placing the basic rules of Sudoku: But, the rule is added to the numbers must be placed to fit in 1 square of the same color to 4 spaces to the operation rules. Addition, subtraction, multiplication, and division, you can set the difficulty level that suits you. Pushing and holding function to display the correct values, and error checking. If you want to be more immersed. Now, we invite you to the whole new world of Sudoku. Keywords: Sudoku, sudocu, operations, sudoku, sudoku, puzzles, games, 3x3 puzzles, math, early childhood mathematics, math, learning, addition, subtraction, array, an IQ game, IQ puzzle, plus, minus, divide, multiply, sdocu