QUẢNG CÁO
Câu hỏi trắc nghiệm (10 câu):
-
Câu 1:
Tính: \(\frac{3}{5} + \left( {\frac{{ - 5}}{6}} \right) + \left( {\frac{{ - 1}}{3}} \right)\)
- A. \(\frac{{17}}{{30}}\)
- B. \(\frac{{19}}{{30}}\)
- C. \(-\frac{{17}}{{30}}\)
- D. \(-\frac{{19}}{{30}}\)
-
- A. \(x = {{ - 1} \over {9}}\)
- B. \(x = {{ - 1} \over {10}}\)
- C. \(x = {{ - 1} \over {11}}\)
- D. \(x = {{ - 1} \over {12}}\)
-
- A. \(x = - {1 \over {10}}\)
- B. \(x = - {1 \over {20}}\)
- C. \(x = - {1 \over {30}}\)
- D. \(x = - {1 \over {40}}\)
-
- A. 0
- B. 1
- C. 2
- D. 3
-
- A. x = 1
- B. x = -1
- C. \(x=\frac52\)
- D. \(x=-\frac52\)
-
- A. \( - \frac{1}{{14}}\)
- B. \(\frac{2}{7}\)
- C. \(\frac{1}{{14}}\)
- D. \(\frac{1}{{10}}\)
-
- A. \({\rm{x}} = \frac{{ - 13}}{{30}}\)
- B. \({\rm{x}} = \frac{{11}}{{30}}\)
- C. \({\rm{x}} = \frac{{ - 5}}{{150}}\)
- D. \({\rm{x}} = \frac{{65}}{{150}}\)
-
- A. \(\frac{8}{3}\)
- B. 2,6
- C. \( - \frac{3}{8}\)
- D. \(\frac{{ - 8}}{3}\)
-
- A. 1,77
- B. \(\frac{{89}}{{50}}\)
- C. \(\frac{{17}}{{50}}\)
- D. 1,7
-
- A. x = 0
- B. x = 1
- C. x = -1
- D. x = 2
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