Mathemagic Trailer
神奇數學影片介紹

Hello Numbers! (English Version) (Demo)
數字你好 (英文版) [影片示範]

Hello Numbers! (Cantonese Version) (Demo)
數字你好 (粵語版) [影片示範]

Hello Numbers! (Putonghua Version) (Demo)
數字你好 (普通話版) [影片示範]