七上數學(最大公因數、最小公倍數)

七上數學(最大公因數、最小公倍數)

7th Grade

16 Qs

quiz-placeholder

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七上數學(最大公因數、最小公倍數)

七上數學(最大公因數、最小公倍數)

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Hard

Created by

白 皮

Used 29+ times

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16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

下列哪個數是 34×52 的因數?

35

32×54

3×5

2×32×52

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

如圖為峻翔利用短除法求 12、16、18 這三個數的最大公因數的過程。若利用短除法求最小公倍數,則〔12,16,18〕=?

12

144

432

864

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

下列哪一個是 23×32×7 和 22×33×72 的最大公因數?

1

2×3×7

22×32×7

23×33×72

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

已知 N=22×33×5×72,則下列哪一個不是 N 的因數?

2×5×7

3×5×7

22×32×72

32×52×72

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

求 60、90、135 的最小公倍數〔60,90,135〕是多少?

15

540

1080

1620

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

兩個正整數 90、36 的最大公因數與最小公倍數的和為多少?

90

180

198

360

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

23×32 與 22×33×5 之最小公倍數為最大公因數的多少倍?

30

25

20

15

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