質數和成合數
Authored by ling ps
Mathematics
4th Grade
Used 51+ times
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8 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
最小的質數是⋯⋯
1
2
3
5
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
最小的合成數是⋯⋯
2
3
4
5
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
哪一個質數最接近50?
47
48
49
51
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
以下哪一個組合結果是質數？
15 + 2
18 ＋3
90 ＋ 1
83 - 2
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
100以內最大的質數是⋯⋯
91
93
97
99
6.
FILL IN THE BLANKS QUESTION
30 sec • 1 pt
100以內最大的合成數是什麼？
(a)
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
以下哪個數是質數？
4
49
53
81
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