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质数与合数

Authored by HUANG Moe

Mathematics, Fun, Education

6th Grade

CCSS covered

Used 137+ times

质数与合数
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

请问什么是质数?

质数是除了1和它本身,还能被其他数整除的奇数。

质数是除了1和它本身,还能被其他数整除的偶数。

质数是除了1和它本身,还能被其他数整除的数。

质数是只能被1和它本身整除的数。

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下的数目哪项是属于质数?

3, 5, 7, 9, 11,13

11, 13, 17, 19, 23

23, 27, 37, 41, 45

21, 31, 41, 51, 61

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

44 至62之间有多少个数字是质数?

1

2

3

4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1 至20之间有多少个数字是合数?

10

11

12

13

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下哪一组是合数?

8, 100

15, 83

44, 97

13, 58

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下哪一组是质数?

21, 31

83, 90

43, 63

61, 97

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下哪个数目不是质数?

79

71

69

67

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