Tired of wasting your time with mind numbing phone games or videos? Why not spend that time working on your brain. Solving mathematical problems, no matter how simple or complex, has been proven to help delay the onset of neurological disorders, increase mental agility, creativity and quickness of thought. With Mental Math Trainer you can choose from any of the 4 basic mathematical operations (+, -, ÷, ×) as well as a random mix of all. Within each operation, you can choose the difficulty of the equation. Feeling like taking it easy or learning addition for the first time; try a 1x1 problem. Strangely good at math? How about a 5x5 or 9x9 problem! With Mental Math Trainer, you can always find something to challenge you or keep you at the top of your game!