
TOÁN 8A | CD: BẤT ĐẲNG THỨC | T5 17/4/2025

Quiz
•
Mathematics
•
8th Grade
•
Medium
Vinh Sư Phụ
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bất đẳng thức mô tả phát biểu “ x là số không âm” là
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho bất đẳng thức m > n. Chọn kết luận đúng trong các kết luận sau:
A. m + 4 < n + 4
B. m - 4 > n - 4
C. m - 1 < n - 1
D. m + 1 < n + 1
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A
B
C
D
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nếu a < b thì
A. 2a < 2b
B. -3a < -3b
C. 4a > 4b
D. 3(b+1) < 3(a+1)
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giả sử tt là số giờ làm việc tối thiểu của công nhân trong một ngày. Dùng kí hiệu để viết bất đẳng thức trong trường hợp: “Số giờ làm việc tối thiểu của công nhân trong một ngày là 8 giờ” ta được
t ≥ 8
t > 8
t = 8
t < 8
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Với 2 số thực a, b khi ab < 0 thì ta nói
A. a, b cùng dương
B. a, b cùng âm
C. a, b cùng dấu
D. a, b trái dấu
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
m > n
m < n
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