Mental Math Calc: Customizable

Improve your mental awareness or just have fun doing mental math calculations

This application has the following features:

- High level of customization with an adjustable difficulty

- Simple rustic design

- Select the operation/s to practise (addition, subtraction, multiplication and division)

- Fix the initial time

- Establish the number of digits of each operand in the different operations

- Choose the recovered time when answering correctly each type of the operation

- Time Trial! Setting the recovered time to 0.

- Final screen that shows the amount of correct answers and also the total of operations done.

- Check your results and improve your mental math calculation