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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

康數60101公因數公倍數選擇40all題
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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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