
Câu hỏi Toán học
Authored by Hoa Dam
Mathematics
7th Grade
Used 3+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giá trị của biểu thức 2m + 2n khi m = n = -1 là:
4
-4
0
1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
36
3
-3
15
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bạn Tâm mua 5 quyển vở giá x đồng/1 quyển; mua 4 cái bút giá y đồng/1 cái. Hỏi tổng số tiền mà bạn Tâm phải trả là:
5x + 4y
5 + x + 4 + y
5x
4y
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
178,5 cm;
178,4 cm.
178,3 cm;
178,2 cm;
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x=7
x=5
x=-7
x=-5
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