
Bài số 1
Authored by Ngân Thanh
Mathematics
7th Grade
Used 1+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Từ đẳng thức -2.9 = 3.(-6), ta có thể lập được tỉ lệ thức nào?
2.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Cho x và y tỉ lệ nghịch với nhau theo hệ số tỉ lệ k = -24. Khi x = 8 thì y = ?
3
-3
8
-8
3.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Biểu thức đại số nào sau đây biểu thị thể tích hình lập phương có độ dài cạnh bằng x (cm)?
4x
4.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
góc I > góc H
góc K < góc I
góc I > góc H > góc K
góc H < góc K
5.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Một công nhân làm được 20 sản phẩm trong 40 phút. Trong 60 phút người đó làm được bao nhiêu sản phẩm cùng loại?
30 sản phẩm
10 sản phẩm
15 sản phẩm
35 sản phẩm
6.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
DF = 5cm
AB = DE
7.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Cho đa thức P(x)= - 4 + x , hãy chọn đáp án đúng:
P(0) = 2
P(4) = 0
-4 là nghiệm của P(x)
0 là nghiệm của P(x)
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