Cross Mathematical Puzzle

This application is a simple but deep brain training puzzle game.
Makes the total of the numbers of row or column equal to the number in each circle.
There are difficulty levels from "4x4" to "9x9".
Easy puzzles or difficult puzzles are the same way of solving.
Filling up the cells step by step, you can complete the puzzle.
The number of solved puzzles and clear time are recorded in the application.
Please solve puzzles everyday and do brain training.

【How to solve the puzzle】
・Makes the total of the numbers of row or column equal to the number in each circle.
・Select FILL and tap the unnecessary cells.
・Select CHECK and tap the necessary cells.
・When you CHECK all correct cells, the puzzle is complete!