🪞 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
41 ////// 80 02:16 2026-10-02 15:22
42 朱朱 80 02:20 2026-10-02 16:09
43 10302 80 02:25 2026-10-05 08:30
44 14 80 02:27 2026-10-02 15:13
45 縈 80 02:36 2026-10-02 15:12
46 70311 80 02:50 2026-10-02 16:13
47 7號是智障 80 02:59 2026-10-02 16:37
48 我很6 80 03:00 2026-10-02 16:06
49 123456789123456789123456789 80 03:06 2026-10-02 15:10
50 npepkpㄙ 80 04:38 2026-10-02 16:10