23.06 + 1.7 = 247.6 ÷ ( )
四年级数学单元二

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Mathematics
•
1st - 10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
括号内应填上什么数目? 答案是 10.
2.
FLASHCARD QUESTION
Front
一群学生当中,有15%是独生子女。独生子女的学生人数占学生总人数的几分之几?
Back
答案是 \( \frac{3}{20} \) .
3.
FLASHCARD QUESTION
Front
两个数目的商是2.05,除数是10,被除数是?
Back
答案是 20.5.
4.
FLASHCARD QUESTION
Front
3.518 读作?
Back
答案是 三点五一八.
5.
FLASHCARD QUESTION
Front
25.7的数值是___________
Back
答案是 0.7.
6.
FLASHCARD QUESTION
Front
什么是百分比?
Back
百分比是表示一个数占另一个数的比例,通常用%表示。
7.
FLASHCARD QUESTION
Front
什么是分数?
Back
分数是表示部分与整体之间关系的数学表达式,通常形式为 \( \frac{a}{b} \) 。
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