
第2章 自然数的性质
Authored by JIA HENG ANG
Mathematics
7th Grade
Used 15+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
求自然数中小于10的偶数。
0, 2, 4, 6, 8
2, 4, 6, 8
2, 4, 6, 8, 10
0, 2, 4, 6, 8, 10
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
求6的因数。
1,2,3,6
1,6,12
2,3,6,12
6,12,18
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
求首三个6的倍数。
1,2,3,6
1,6,12
2,3,6,12
6,12,18
4.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
下列各数中,请选出质数。
1
2
3
4
5
5.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
下列各数中,请选出合数。
1
2
3
4
5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
求自然数中大于20但小于40的质数。
21,23,29,31,37,39
23,29,31,37,39
21,23,25,27,29,31,33,35,37,39
23,29,31,33,37,39
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
请问47是不是质数?
是
不是
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