
康數60101公因數公倍數選擇40all題
Authored by 老師 楊
Mathematics
1st - 5th Grade
Used 1+ times

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40 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下面哪一個數是15的質因數?
1
3
10
15
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下面哪一個是50的質因數分解?
1×50
2×25
2×5×5
5×10
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下面哪兩個數不是互質?
11和15
23和40
26和39
17和43
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
36和84的最大公因數是多少?
2
12
36
84
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下面哪一個數不是合數?
41
40
32
16
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
36的質因數分解可以寫成下列哪一個乘法算式?
4×9
2×3
2×3×3
2×2×3×3
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
3、4、5、7、11、12、15、16、17,這些數中共有幾個質數?
4個
5個
6個
7個
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