下列敘述何者正確?(A) 8 = 1.6×5,所以5是8的因數 (B) 1是17的因數 (C) 36的最小質因數是2、3、6 (D) 12=3×4,所以12的因數只有3和4

七上第二次段考北興國中題目14

Quiz
•
Mathematics
•
7th Grade
•
Hard
黃俊賓 關山國中
Used 5+ times
FREE Resource
26 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
8 = 1.6×5,所以5是8的因數
1是17的因數
36的最小質因數是2、3、6
12=3×4,所以12的因數只有3和4
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
將680做質因數分解,則680的相異質因數沒有
1
2
5
17
Answer explanation
所有的質數中,最小且是唯一的偶數是2。
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
水果店老闆預備360顆蘋果、420顆水梨和840顆水蜜桃,分裝成包含蘋果、水梨、水蜜桃的綜合禮盒,沒有剩餘。若每個禮盒的蘋果、水梨、水蜜桃數量要相同,下列問題何者錯誤?
最多可以分成420個禮盒
蘋果放了3顆
水梨放了2顆
水蜜桃放了4顆
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
下列敘述何者正確?
互質的兩個正整數一定都是奇數
互質的兩個正整數一定都是質數
兩個相異合數一定不互質
兩個相異質數乘一定互質
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者最大?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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