🪞 Dual Mirror Lab

Opposites add to 0; reciprocals multiply to 1

Mission: Stop mixing up opposites and reciprocals!

🪞 Opposite Mirror: Opposite numbers add to 0.
🔄 Reciprocal Mirror: For nonzero numbers, reciprocals multiply to 1.
⚠️ Special case: The opposite of 0 is 0, but 0 has no reciprocal.

Predict first, then launch the validation animation. Normal mode starts at 100 points; each valid wrong answer costs 5 points and you retry the same question.
⏱️ 00:00
Predict the answer first

🏆 Dual Mirror Masters

Rank Name Best Score ⏱️ Time Best Date
71 70310 65 04:33 2026-10-02 16:24
72 .,..,,. 65 05:45 2026-10-02 15:19
73 101 25 XD 60 01:43 2026-10-02 15:14
74 林妤芯 60 03:57 2026-10-02 15:12
75 70601 60 08:31 2026-10-14 20:41
76 莫蘭特 55 02:25 2026-10-02 15:24
77 70722 55 04:15 2026-10-02 15:27
78 吳柏諺 55 04:16 2026-10-02 15:13
79 3626 55 06:42 2026-10-02 15:22
80 06 45 02:20 2026-10-07 16:44