FindSpeedAnimation 对比 立体色あて（あそんでまなぶ！シリーズ） 的使用情况和统计数据

This app helps you learn how to calculate questions about distance, time and speed with animation in which a car is running. The app gives you questions about distance, time and speed. Questions are simple. You will calculate a missing data with the others. The animation in which a car is running helps you to learn how to calculate these questions. You can use two units of distance: km and mile. In-App Purchases - Creating your own questions. - Questions about two cars. - You can customize animation. Specification about Questions the App Create Automatically Speed: Selected at random from 20 to 70mph or 90km/h Time: Selected at random from two to nine hours Distance: The result of multiplying speed and time