Math Gnomes

Math Gnomes is an application for training math skills.
The only limitation - user of this application should be familiar with numbers.
User can compare two given numbers, solve addition, subtraction or mixed sign equations, multiply and divide.
Application allows to set maximum value for the equations. Equations are generated randomly using randomly chosen numbers in the defined interval.
There are two options for providing answer: user can enter the result of the equation or select one of the given answers.