價格：免費
檔案大小：67.1 MB
版本需求：系統需求：iOS 7.1.2 或以後版本。相容裝置：iPhone、iPad、iPod touch。
支援語言：英語
Test your math skills and fast thinking.
Click the red arrow to begin the game.
Select the red X if the answer is incorrect.
Selected the Green check mark if the answer is correct.
Keep doing this as long as you can.
Tip: It may seem hard at first, but keep trying. You will get much better and faster at your math skills with practice.
Tip: The timer at the top of the screen tells you how much time you have left.
Tip: Each time you get a correct answer, you get more time.
支援平台：iPhone, iPad