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质数与合数

Authored by Kong Seow Yee

Mathematics

1st Grade

Used 4+ times

质数与合数
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

质数是 ——————

除了1和它本身,还能被其他数整除的奇数。

除了1和它本身,还能被其他数整除的偶数。

除了1和它本身,还能被其他数整除的数。

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

以下哪一组是合数?

8, 100

15, 83

44, 97

13, 58

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下哪一组是质数?

21, 31

83, 90

43, 63

61, 97

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下哪个数目是质数?

21

51

71

91

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

找出质数:

36,49,52,69,73

36

49

69

73

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在下列的数目中,哪个是质数?

39,51,79,65

39

51

79

65

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