This is a mathematical elimination game on a Pad, if your math is great, then challenge the maestro. The method is very simple: through the proper mathematical equation, the result is zero, and let all the squares in the grid win.
Its a simple practice at the beginning, and the numbers and calculations will become more and more complex, and if you want to be a real master of mathematics, you need to choose the correct operation order in addition to the correct calculation equation. As long as one of the steps is wrong, you can all be stuck, in which case you can start using the "repeat" button in the lower left corner to try a new correct operation equation and order.
Can you be a real master of mathematics? When you challenge, you know, lets download it quickly. Wish you success