Rounding Quiz (Combined) 小數位及有效數字：同步測驗
- 作者：
- Alex CHIK
輸入正確答案後（不可包含空格）按「核對」。答對得1分，答錯不扣分。
Press “Check” after entering answers (spaces are not allowed). One mark is scored for each correct answer. No marks are deducted for wrong answers.
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