Description

146 ÷ 2, 456 ÷ 8, 957 ÷ 3, how long would it take you to calculate them? 5 seconds? 15? Through this exciting shooting game, you can improve your speed and accuracy. Let's protect the submarine together!

46 ÷ 2, 456 ÷ 8, 957 ÷ 3 ... ... 這些除法算式你要花多少時間計算呢?5 秒?10 秒?透過這個有趣而刺激的射擊遊戲,可以 100% 提升你的心算速度,齊來保護潛艇的安全吧!

What's New in Version 2.0

- iOS 6 supported
- for iOS 5.0 or below, no need to update
- If the app failed to run after update, please remove and reinstall again.