
Câu hỏi ôn tập giữa kỳ 2 toán 7
Quiz
•
Mathematics
•
7th Grade
•
Easy
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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho x =5 và y = 30 . Và y tỉ lệ thuận với x theo hệ số tỉ lệ là:
6
5
150
Answer explanation
y tỉ lệ thuận với x nên hệ số k = y : x
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho ABC có góc A = 80 độ; góc C = 60 độ . So sánh nào sau đây là đúng?
AC < AB < BC
BC < AB < AC
AB < BC < AC
BC < AC < AB
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nếu a: b = c : d thì:
ac = bd
ad = bc
ad = bd
ab = cd
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho ba số a; b; c tỉ lệ với 3; 4; 5 ta có dãy tỉ số
a : b : c = 5 : 4 : 3
a : b : c = 4 : 3 : 5
a : b : c =5 : 3 : 4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Từ 1,5 . 4 = 3. 2 sau đây có thể lập thành tỉ lệ thức?
1,5 : 3 = 2 : 5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho biết x tỉ lệ thuận với y theo hệ số tỉ lệ 3. Khi đó biểu diễn y theo x là:
x . y = 3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Từ đẳng thức 2.15 = 6.5, ta có thể lập được tỉ lệ thức nào?
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