
Biểu thức đại số - Toán 7
Authored by Chủ Bá
Mathematics
7th Grade

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53 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giá trị của biểu thức 2x + 3 tại x = 4 là
11
12
13
10
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong biểu thức 5x - 2y, hệ số của y là
-2
2
5
-5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thu gọn biểu thức 3x + 2x - x
4x
3x
5x
6x
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Biểu thức nào là đơn thức
3x2y
x + y
2x - 5
x2 + y2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tổng của hai biểu thức 4x và -7x là
-3x
-11x
x
3x
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Một cửa hàng bán 3 quyển sách với giá x nghìn đồng/quyển và 2 bút với giá y nghìn đồng/cái. Biểu thức biểu diễn tổng số tiền là
3x + 2y
x + y
2x + 3y
5xy
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diện tích hình chữ nhật có chiều dài x + 2, chiều rộng x là
x(x + 2)
x + 2x
x2 + 2
x2 + 2x
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