七上數學(最大公因數、最小公倍數)
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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16 questions
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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
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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