This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Maths Chapter 12 Exponents And Powers – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Maths Chapter 12 Exponents And Powers Quiz 13 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The co-ordinate (-3, 4) lies in ..... quadrant A) I. B) II. C) III. D) IV. Show Answer Correct Answer: B) II. 2. What is the value of $\left(400\times3^0-8\times50\right)$ A) A. 0. B) 392. C) 800. D) 1192. Show Answer Correct Answer: A) A. 0. 3. (-1)$^{2001}$X(-9)$^{2}$ = ..... A) 81. B) -81. C) 18009. D) None of the above. Show Answer Correct Answer: B) -81. 4. (2ab)$^{3}$ A) 2$^{3}$a$^{3}$b$^{3}$. B) 2ab$^{3}$. C) 6a$^{3}$b$^{3}$. D) 6ab. Show Answer Correct Answer: A) 2$^{3}$a$^{3}$b$^{3}$. 5. Express the number appearing in the following statement in standard form: "60, 230, 000, 000, 000, 000, 000, 000 molecules are contained in a drop of water weighing 1.8 gm. A) $6.023\times10^5$. B) $6023\times10^{19}$. C) $6.023\times10^{22}$. D) None of the above. Show Answer Correct Answer: C) $6.023\times10^{22}$. 6. A$^{m}$ x a$^{m}$ is equal to ..... A) A$^{mm}$. B) A$^{m+m}$. C) A$^{m-m}$. D) A$^{m}$/a$^{m}$. Show Answer Correct Answer: B) A$^{m+m}$. 7. Which number has a 9 with a value that is 10 times more than the value of the 9 in the number 129 A) 190. B) 900. C) 139Tags4.2.A. D) None of the above. Show Answer Correct Answer: A) 190. 8. What is the power of a power rule in exponents? A) When raising a power to another power, you add the exponents:(a$^{m}$)$^{n}$ = a$^{m+n}$. B) When raising a power to another power, you multiply the exponents:(a$^{m}$)$^{n}$ = a$^{m*n}$. C) When raising a power to another power, you subtract the exponents:(a$^{m}$)$^{n}$ = a$^{m-n}$. D) When raising a power to another power, you divide the exponents:(a$^{m}$)$^{n}$ = a$^{m/n}$. Show Answer Correct Answer: B) When raising a power to another power, you multiply the exponents:(a$^{m}$)$^{n}$ = a$^{m*n}$. 9. Simplify $4x^2\left(-2x^3y^5\right)$ A) $-8x^6y^5$. B) $8x^5y^5$. C) $-8x^5y^5$. D) None of the above. Show Answer Correct Answer: C) $-8x^5y^5$. 10. Which product of 10, equals 10, 000? A) 10x10. B) 10x10x10. C) 10x10x10x10. D) 10x10x10x10x10. Show Answer Correct Answer: C) 10x10x10x10. 11. What is the value of x$^{-y}$ when x=5 and y=2 A) 1/25. B) 25. C) -25. D) 0.86. Show Answer Correct Answer: A) 1/25. 12. The multiplicative inverse of 10$^{-2}$ is ..... A) 10 x 2. B) 10$^{2}$. C) 1/10$^{2}$. D) 1/10$^{-2}$. Show Answer Correct Answer: B) 10$^{2}$. 13. Which number listed below is a prime number? A) 1. B) 37. C) 63. D) 33. Show Answer Correct Answer: B) 37. 14. Will the following be positive or negative? $\left(-5\right)^2$ A) Positive. B) Negative. C) All the above. D) None of the above. Show Answer Correct Answer: A) Positive. 15. 7 raise 6ans:7x7x7x7x7x7 A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. ) Simplify (2a$^{2}$b$^{4}$z)(6a$^{3}$b$^{2}$z$^{5}$) A) 8a$^{5}$b$^{6}$z$^{6}$. B) 12a$^{6}$b$^{8}$z$^{5}$. C) 12a$^{5}$b$^{6}$z$^{6}$. D) 8a$^{6}$b$^{8}$z$^{5}$. Show Answer Correct Answer: C) 12a$^{5}$b$^{6}$z$^{6}$. 17. Find the value.9 x 10$^{2}$ A) 18. B) 180. C) 900. D) 90. Show Answer Correct Answer: C) 900. 18. -4x + 1 = 21 A) X=120. B) X=5. C) X=30. D) X=-5. Show Answer Correct Answer: D) X=-5. 19. Y$^{-2}$ x y$^{-5 }$is equal to ..... A) Y$^{-3}$. B) Y$^{-10}$. C) Y$^{-5}$. D) Y$^{-7}$. Show Answer Correct Answer: D) Y$^{-7}$. 20. $10\times10\times10\times10\times10=$ A) $10\times5$. B) $10^5$. C) All the above. D) None of the above. Show Answer Correct Answer: B) $10^5$. 21. On Simplifying $\frac{\left(9m^2\right)^{\frac{1}{3}}}{6^4}\times\frac{\left(4n^2\right)^{\frac{1}{3}}}{5m}$ A) $\left(\frac{1}{5}\right)\left(\frac{n^{\frac{2}{\frac{3}{3}}}}{3^{10}2^{10}m^{\frac{1}{3}}}\right)^{ }$. B) $\frac{1}{5}\left(\frac{n^2\times2^6}{3^{10}m^{\frac{1}{3}}}\right)$. C) $\left(\frac{3^62^6n^2}{5m}\right)^{\frac{1}{3}}$. D) None of these. Show Answer Correct Answer: A) $\left(\frac{1}{5}\right)\left(\frac{n^{\frac{2}{\frac{3}{3}}}}{3^{10}2^{10}m^{\frac{1}{3}}}\right)^{ }$. 22. $p\cdot q\cdot q\cdot q\cdot q\cdot q\cdot q\cdot q\cdot q\cdot q$ A) $pq^9$. B) $\left(pq\right)^9$. C) 9pq. D) $\left(pq\right)^{10}$. Show Answer Correct Answer: A) $pq^9$. 23. Simplify and solve:3$^{3}$-2$^{3 }$= A) 27-8. B) 19. C) 20. D) 35. Show Answer Correct Answer: B) 19. 24. Write in expanded form:7 raise to 9 A) 9x9x9x9. B) 7x7x7x7x7x7x7x7x7. C) 9x7x9x9x7x9. D) 7x7x7x7x7x7x7x7x7x7x7. Show Answer Correct Answer: B) 7x7x7x7x7x7x7x7x7. 25. According to exponent rules, when we raise the power to a power we ..... the exponents.Example:(d$^{2}$)$^{5}$ A) Add. B) Subtract. C) Multiply. D) Divide. Show Answer Correct Answer: C) Multiply. ← PreviousNext →Related QuizzesClass 8 Maths Chapter 12 Exponents And Powers Quiz 1Class 8 Maths Chapter 12 Exponents And Powers Quiz 2Class 8 Maths Chapter 12 Exponents And Powers Quiz 3Class 8 Maths Chapter 12 Exponents And Powers Quiz 4Class 8 Maths Chapter 12 Exponents And Powers Quiz 5Class 8 Maths Chapter 12 Exponents And Powers Quiz 6Class 8 Maths Chapter 12 Exponents And Powers Quiz 7Class 8 Maths Chapter 12 Exponents And Powers Quiz 8Class 8 Maths Chapter 12 Exponents And Powers Quiz 9Class 8 Maths Chapter 12 Exponents And Powers Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books