Numerium
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🇨🇳 ZH
🇰🇷 KO
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速度挑战
与时间赛跑，选择正确答案
包含运算符
+
-
×
÷
Difficulty
easy
10s per question
medium
7s per question
hard
5s per question
Round count
10
20
30
Combo boosts: 2x after 3, 3x after 6, 5x after 10 correct in a row.
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