A free app for Android, by Crane Game.

Unicorn Dash Game: Math Runner is an educational running game that will test your basic math skills, including addition, subtraction, multiplication, and division. Here, you will be given math questions and two choices for each question. You have to make the unicorn run towards the correct answer. If you answer incorrectly, the unicorn will reduce in size and power, and will lose a life.

The challenges are based on real mathematics and the game will test your knowledge. You will be given a number of questions and you will have to solve them. The more correct answers you give, the more points you will earn.