
Ôn tập chương 1
Authored by Doug Lion
Mathematics
7th Grade
Used 1+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Với mọi x, y, z ∈ Q : x + y = z. Áp dụng quy tắc chuyển vế thì x = ?
A. x = z – y;
B. x = y – z;
C. x= z + (– y);
D. Cả A và C đều đúng
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bỏ dấu ngoặc biểu thức sau: A – (−B + C + D). Ta thu được kết quả là:
C + B – A –D
D + B – C –A
A + B – C –D
B −A – C –D
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
45
-45
-5
-135
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
9
-9
-24
24
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5
3
4
2
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