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倍數和因數

Authored by 岑梽超老師 Sum Chi Chiu

Mathematics

1st - 8th Grade

Used 6+ times

倍數和因數
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15 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

以下哪些數不是70的因數?

2

3

5

7

20

2.

OPEN ENDED QUESTION

3 mins • Ungraded

用列舉法找出28和60的所有公因數。

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3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

用短除法找出48和64的L.C.M.。

4.

OPEN ENDED QUESTION

2 mins • Ungraded

寫出6和8的最初4個公倍數。

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5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

以下哪一個數是42的倍數?

1

7

63

84

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 \nabla  的首3個倍數: \nabla  , 30 , 45。那麼,以下哪個數是 \nabla  的因數?

2

15

30

60

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

9和15的最小公倍數是45。那麼它們的第8個公倍數是甚麼?

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