
七上第一次段考模擬卷2
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
黃俊賓 關山國中
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29 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
物價波動是相對的,調漲10元配為+10,那麼調降6元可記為多少?
-16
+4
-6
-4
Answer explanation
物價調降6元,相對於調漲10元的+10,調降的相對值為-6。因此,正確答案是-6。
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列敘述何者正確?(A) 在數線上,-3 1/2 在-3的右邊 (B) 在數線上,最靠近-3 4/9的整數為-4 (C) -3.8的絕對值等於3.8 (D) 最靠近-8/7的整數絕對值等於7
在數線上,-3 1/2 在-3的右邊
在數線上,最靠近-3 4/9的整數為-4
-3.8的絕對值等於3.8
最靠近-8/7的整數絕對值等於7
Answer explanation
選項(C)是正確的,因為-3.8的絕對值確實等於3.8。其他選項均不正確:-3 1/2在-3的左邊,最靠近-3 4/9的整數是-3,而-8/7的整數絕對值是1。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如右圖,數線上B點所代表的數是多少?
-7/4
-1.3
-2.1
-1/24
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列算式的值何者正確?
(A) -3-8=-5
(B) -3-(-8)=-5
(C) (-8)+(-3)=-11
(D) (-8)+3=-11
Answer explanation
選項(C) (-8)+(-3)=-11是正確的,因為-8加-3等於-11。其他選項的計算結果不正確。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若|甲+16|+|乙-14|=0,則甲+乙=?
-15
-2
2
15
Answer explanation
由於|甲+16|+|乙-14|=0,兩個絕對值都必須為0,因此甲+16=0和乙-14=0。解得甲=-16,乙=14,故甲+乙=-16+14=-2。正確答案是-2。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(-7)×3
(-7)+(-7)+(-7)
(-7)×(-7)×(-7)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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