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第一冊2-1因倍數

Authored by 小娟 賈

Mathematics

7th Grade

Used 1+ times

第一冊2-1因倍數
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

有一正整數N的所有因數由小到大排列如下:1、2、a、6、9、b則a+b=?

15

18

21

24

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

已知四位數202□是5的倍數,不是2的倍數,則□可填入的數為何?

0

2

4

5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪些數字是3的倍數?甲:1236 乙:2136 丙:1263 丁:6321

甲、乙

甲、丙

丙、丁

甲、乙、丙、丁

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一個數不是質數?

37

47

57

67

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

小軒想要將15個邊長為1的小正方形緊密排列拼成長方形,且不會剩下任何小正方形,則小軒可以拼出幾種不同形狀的長方形?

1

2

3

4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一個不是120的質因數?

2

3

5

6

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列敘述何者正確?

2是最小的質數

2不是質數中唯一的偶數

5跟7皆是質數,所以5跟7的乘積35也是質數

1到100的整數中扣除質數後,剩下的數皆為合數

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