With Cross Equations, you fill in the empty boxes with the number that solves the equation.
Similar to a crossword puzzle, but with numbers instead of letters and equations instead of definitions.
The five levels of play allow you to start easy and gradually increase the difficulty.
A race against time that keeps your brain active, increases mental calculation speed, and simultaneously relaxes you.
You can play it anywhere, just a few minutes a day to help you stay young while having fun.