Class 8 Rational Numbers CBSE Questions & Answers
Class 8 · Rational Numbers
This is Mathematics Class 8 Rational Numbers CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.
Questions & Answers
1
\(0{\text{ }} \times {\text{ }}\frac{1}{2}{\text{ }} = {\text{ }}\_\_\_\_\)
- A1
- B0Correct
- C4
- D\(\frac{1}{4}\)
2
\({\text{1 }} \times {\text{ }}\frac{1}{2}{\text{ }} = {\text{ }}\_\_\_\_\)
- A\(\frac{1}{2}\)Correct
- B1
- C2
- D0
3
\(0 \times \frac{4}{5} = {\text{ }}\_\_\_\_\)
- A0Correct
- B4
- C5
4
\({\text{1 }} \times \frac{{12}}{{13}} = {\text{ }}\_\_\_\_\)
- A0
- B1
- C\(\frac{{12}}{{13}}\)Correct
- D12
5
\(0{\text{ }} \times \frac{{15}}{{17}} = {\text{ }}\_\_\_\_\)
- A0Correct
- B17
- C15
- D\(\frac{{15}}{{17}}\)
6
\({\text{1 }} \times \frac{{13}}{{14}} = {\text{ }}\_\_\_\_\)
- A0
- B13
- C14
- D\(\frac{{13}}{{14}}\)Correct
7
Write the additive inverse of\(\frac{{ - 12}}{{13}}\).
- A\(\frac{{12}}{{13}}\)Correct
- B0
- C\( - \frac{{12}}{{13}}\)
- D1
8
Find the multiplicative inverse of\(\frac{{ - 1}}{{15}}\).
- A15
- B-15Correct
- C\(\frac{{ - 1}}{{15}}\)
- D14
9
Write the additive inverse of\( - \frac{{13}}{{14}}\).
- A\( - \frac{{13}}{{14}}\)
- B\(\frac{{13}}{{14}}\)Correct
- C0
- D1
10
Find the multiplicative inverse of\(\frac{{ - 2}}{3}\).
- A-3
- B-2
- C3
- D\(\frac{{ - 3}}{2}\)Correct
11
Write the additive inverse of\( - \frac{{15}}{{17}}\).
- A0
- B\(\frac{{15}}{{17}}\)Correct
- C1
- D\( - \frac{{15}}{{17}}\)
12
Find the multiplicative inverse of\(\frac{{ - 3}}{7}\).
- A\(\frac{{ - 7}}{3}\)Correct
- B-7
- C-3
- D7
13
Write the additive inverse of\(\frac{{13}}{{17}}\).
- A0
- B1
- C\(\frac{{13}}{{17}}\)
- D\( - \frac{{13}}{{17}}\)Correct
14
Find the multiplicative inverse of\(\frac{{13}}{{17}}\).
- A17
- B-13
- C16
- D\(\frac{{17}}{{13}}\)Correct
15
Write the additive inverse of\( - \frac{{21}}{{22}}\).
- A1
- B\(\frac{{21}}{{22}}\)Correct
- C\( - \frac{{21}}{{22}}\)
- D0