振鋒有y個盒子,而每個盒子有x個紙夾。其後他用去了4個紙夾,
現還 餘下多少個紙夾?
數學 試卷二
Quiz
•
Mathematics
•
8th Grade
•
Hard
TSZ LAM
Used 1+ times
FREE Resource
21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
振鋒有y個盒子,而每個盒子有x個紙夾。其後他用去了4個紙夾,
現還 餘下多少個紙夾?
(xy – 4) 個
(xy + 4) 個
x(y – 4) 個
y(x – 4) 個
2.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
解方程 4a + 8 = 6a + 16
a = –4
a = –2
a = 4
a = 2
3.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
已知公式y = 11 – 2x。若y = 3,則x =
7
4
-4
-7
4.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
考慮公式y = ax2 + x – c。若a = –2、c = 3及x = 4,求y的值。
-15
-31
33
65
5.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
永光用 $19 購買了 3支紅筆和 1 支藍筆。一支紅筆的售價是 $x。若一支紅筆的售價比一支藍筆的售價多 $1,求一支紅筆的售價。
$3.5
$4
$4.5
$5
6.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
化簡 (6x + 9y) – (x + 2y)。
6 + 11y
6 + 7y
5x + 11y
5x + 7y
7.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
展開 (4x – 1)(–2x)。
–8x2 + 2x
–8x2 – 2x
–6x –1
2x –1
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