

on tap giưa hoc ki 1 toan 9 vui
Presentation
•
Mathematics
•
2nd Grade
•
Hard
Hồng Phạm
Used 3+ times
FREE Resource
0 Slides • 6 Questions
1
Multiple Choice
Kết quả của phép khai căn (3 − 1)2 là:
- 3 − 1
3 − 1
3 + 1
1 - 3
2
Multiple Choice
Điều kiện xác định của biểu thức x −3
x ≥ 3
x ≤ 3
x > 3
x < 3
3
Multiple Choice
Biết x2 = 13 thì x bằng
±169
13
169
±13
4
Multiple Choice
Giá trị biểu thức (3−2)(3 + 2) là:
5
-1
1
7
5
Multiple Choice
So sánh 9 và 79 , ta có kết luận sau
9 > 79
9 < 79
9 = 79
Không so sánh được
6
Multiple Choice
Tam giác có độ dài các cạnh lần lượt là 2,5cm; 2cm; 1,5cm thì độ dài đường cao ứng với cạnh lớn nhất là:
1,5cm
1,2cm
≈ 1,71cm
2,7cm
Kết quả của phép khai căn (3 − 1)2 là:
- 3 − 1
3 − 1
3 + 1
1 - 3
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