🧮 Math Speed Quiz

📖 游戏说明

1. 1Choose difficulty: Easy (1–10), Medium (1–20 with ×), Hard (up to 99 with ×).
2. 2Press Start to begin the 30-second countdown.
3. 3Type your answer and press Enter (or click ✓) to submit.
4. 4Correct answers score +1 point. Incorrect answers show the right answer briefly.
5. 5Press Skip to move to the next question without scoring.
6. 6Your top scores per difficulty are saved to the leaderboard.

游戏介绍 Math Speed Quiz

Math Speed Quiz — solve as many arithmetic problems as you can in 30 seconds. Addition, subtraction, and multiplication across three difficulty levels. Beat your high score!