
Ôn tập hè (Toán 8 KNTT - Chương I)
Quiz
•
Mathematics
•
8th Grade
•
Hard
Thành Danh Ngô Nguyễn
Used 2+ times
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Câu 9: Biểu thức nào sau đây là đơn thức?
A. x3+x
B. x4y2+2y2z
C. x8.(−4).yz
D. −x2+yz
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Câu 16: Tích xy2z.(−4).zx bằng:
A. −4xy2z2
B. −4x2y2z2
C. −4x2y2z
D. −4x2y2z3
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Câu 31: Xác định bậc của biểu thức sau: (1/4xy2).(1/2x2y2)2.(−4/5yz2)
A. 11
B. 12
C. 13
D. 14
A
B
C
D
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Câu 18: Thu gọn đơn thức sau: (−2/5x3y)(15/4x4y3)
A. −3/2x6y4
B. −3/2x7y4
C. −3/2x6y5
D. −3/2x7y5
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Câu 38: Giá trị của (−2xy)2.(−1/3xy.x2y3)2 tại x = -1; y =1 là:
A. 2/3
B. 4/9
C. 4/3
D. 1/9
A
B
C
D
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Câu 15: Tích 2/7.x7.yx.3/4.x2y3 bằng:
A. 3/14x9y5
B. 3/7x10y5
C. 3/7x9y5
D. 3/14x10y5
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Câu 25: Trong các biểu thức đại số sau, biểu thức nào không phải đơn thức?
A. 2
B. 6x + 10
C. 2x3y3
D. 8x4
A
B
C
D
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