This quiz works best with JavaScript enabled. Home > Cbse > Class 8 > Mathematics > Exponents And Powers > Class 8 Maths Chapter 12 Exponents And Powers – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Maths Chapter 12 Exponents And Powers Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Power to a Power Law states:keep the base the same and do this to the exponents. A) Add. B) Subtract. C) Multiply. D) Divide. Show Answer Correct Answer: C) Multiply. 2. Which digit is in the millions place in the number 8, 374, 625.1? A) 7. B) 8. C) 4. D) 3. Show Answer Correct Answer: B) 8. 3. According to exponent rules, when we divide powers we ..... the exponents. A) Add. B) Divide. C) Subtract. D) Multiply. Show Answer Correct Answer: C) Subtract. 4. Write the following in standard form:10$^{6}$ A) 1, 000, 000. B) 0.000001. C) 0.00001. D) 100, 000. Show Answer Correct Answer: A) 1, 000, 000. 5. How do you multiply exponents with the same base without using expanding? A) Multiply the exponents together. B) Divide the exponents. C) Subtract the exponents. D) Add the exponents together. Show Answer Correct Answer: D) Add the exponents together. 6. ) Simplify (w$^{3/4}$z$^{8/7}$)(w$^{3/4}$z$^{6/7}$) A) W$^{6/4}$z$^{14/7}$. B) W$^{9/16}$z$^{48/49}$. C) W$^{3/2}$z$^{2}$. D) W$^{9/4}$z$^{48/7}$$^{}$. Show Answer Correct Answer: C) W$^{3/2}$z$^{2}$. 7. $\left(8^{\left(3\right)}\right)^0$ A) 2. B) 8. C) 1. D) 0. Show Answer Correct Answer: C) 1. 8. What is anything raised to the power of zero? A) 0. B) 1. C) Infinity. D) Undefined. Show Answer Correct Answer: B) 1. 9. Evaluate $\left(\frac{1}{2}\right)^4$ A) $\frac{1}{8}$. B) $\frac{1}{16}$. C) 8. D) 16. Show Answer Correct Answer: B) $\frac{1}{16}$. 10. A$^{0}$ is equal to A) A. B) 1. C) -1. D) 0. Show Answer Correct Answer: B) 1. 11. (5$^{3}$x$^{2}$y$^{4}$)$^{0}$ A) 0. B) 1. C) 5. D) 5xy. Show Answer Correct Answer: B) 1. 12. The point (0, -9) lies in A) III quadrant. B) Y-axis. C) IV quadrant. D) X-axis. Show Answer Correct Answer: B) Y-axis. 13. What is (0.2)$^{3}$ A) .8. B) 8. C) .08. D) .008. Show Answer Correct Answer: D) .008. 14. Simplify (-3x$^{4}$y$^{5}$)$^{2}$ A) 9x$^{8}$y$^{10}$. B) -9x$^{8}$y$^{10}$. C) 3x$^{8}$y$^{10}$. D) 6x$^{8}$y$^{10}$. Show Answer Correct Answer: A) 9x$^{8}$y$^{10}$. 15. Find the value. 8 x 10$^{2}$ A) 180. B) 800. C) 80. D) 160. Show Answer Correct Answer: B) 800. 16. $\frac{x^{-2}}{x^{-10}y^{-8}}$ A) $x^{20}y^8$. B) $\frac{x^{10}y^8}{x^2}$. C) $x^8y^8$. D) $\frac{x^8}{y^{-8}}$. Show Answer Correct Answer: C) $x^8y^8$. 17. How would you express the exponent expression below in expanded form? $\left(-3\right)^3$ A) (-3) (-3) (-3). B) (-3) (3). C) (-) (3) (3) (3). D) None of the above. Show Answer Correct Answer: A) (-3) (-3) (-3). 18. Which of the following is the standard form of 0.00001275 A) 1.275 * 10$^{-5}$. B) 127.5 * 10$^{-7}$. C) 1.275 * 10$^{5}$. D) 127, 5 * 10$^{7}$. Show Answer Correct Answer: A) 1.275 * 10$^{-5}$. 19. Find the value of the power. A) $3\times4$. B) 12. C) 81. D) $3\times3\times3\times3$. Show Answer Correct Answer: C) 81. 20. What is [ (12x$^{3}$y$^{5}$z$^{7}$)/ (144x$^{-4}$ y$^{7}$z$^{-3}$)]$^{0}$ A) 12(x$^{7}$z$^{10}$). B) 1. C) (x$^{7}$z$^{10}$)/12y$^{2}$. D) (x$^{7}$y$^{-2}$z$^{10}$)/12. Show Answer Correct Answer: B) 1. 21. Which does not equal 100, 000? A) $10^4$. B) $10^5$. C) The fifth power of 10. D) 10 x 10 x 10 x 10 x 10. Show Answer Correct Answer: A) $10^4$. 22. What is 1/4 squared? A) 1/16. B) 1/2. C) 1/4. D) 1/8. Show Answer Correct Answer: A) 1/16. 23. Which of the following = (100-99$^{0}$) x 100? A) 100. B) 10000. C) 9900. D) 1. Show Answer Correct Answer: C) 9900. 24. 7 * 10$^{-5}$ m IS THE STANDARD FORM OF WHICH OF THE FOLLOWING ..... A) 70000.0. B) 0.7. C) 0.00000007. D) 0.00007. Show Answer Correct Answer: D) 0.00007. 25. Mohan borrowed Rs. 30000 for 3 years. He paid simple interest at the rate of 12 % p.a. How much interest did he pay? A) Rs. 12400. B) Rs. 10800. C) Rs. 16200. D) Rs. 13326. Show Answer Correct Answer: B) Rs. 10800. 26. Express the following term in exponential form:$\left(-10n\right)^5$ A) $\left(-10\right)^5\times n^5$. B) $\left(-10\right)^{10}\times n^{10}$. C) $\left(-10\right)\times n^5$. D) None of the above. Show Answer Correct Answer: A) $\left(-10\right)^5\times n^5$. 27. The number of faces in a triangular prism are A) 4. B) 5. C) 6. D) 8. Show Answer Correct Answer: B) 5. 28. Find the digit that makes 90 ..... 5 divisible by 9. A) 4. B) 1. C) 2. D) 3. Show Answer Correct Answer: A) 4. 29. What is the exponent and base of the expression below? $3^4$ A) Base = 4 and exp = 3. B) Base = 3 and exp = 12. C) Base = 3 and exp = 4. D) None of the above. Show Answer Correct Answer: C) Base = 3 and exp = 4. 30. Which property is represented?7(t + u) = 7t + 7u A) Commutative Property. B) Associative Property. C) Distributive Property. D) None of the above. Show Answer Correct Answer: C) Distributive Property. 31. The value of (-2) raised to the power 3 is A) -16. B) 16. C) 8. D) -8. Show Answer Correct Answer: D) -8. 32. $\frac{w^4y^6x^2}{w^2y^3x}$ A) Wxy. B) $w^2y^3x$. C) 4-3-1. D) $w^6y^9x^3$. Show Answer Correct Answer: B) $w^2y^3x$. 33. Simplify:$\frac{25\times5^2\times t^8}{10^3\times t^4}$ A) $\frac{5}{2}\times t^4$. B) $\frac{5\times t^4}{8}$. C) $t^4$. D) None of the above. Show Answer Correct Answer: B) $\frac{5\times t^4}{8}$. 34. 2$^{3}$ +1$^{3}$ =3$^{x}$, then find the value of x. A) 1. B) 6. C) 2. D) 3. Show Answer Correct Answer: C) 2. 35. The multiplicative inverse of 7$^{-2 }$is: A) 1/7. B) 1/7$^{2}$. C) 7. D) 7$^{2}$. Show Answer Correct Answer: D) 7$^{2}$. 36. 3 raise to 8 9 raise to 8 A) 11 raise to 8. B) 12 raise to 8. C) 10 raise to 8. D) None of the above. Show Answer Correct Answer: B) 12 raise to 8. 37. Find the volume of a right circular cylinder if r = 7 cm and h = 14 cm. A) 1112 cu cm. B) 1078 cu cm. C) 512 cu cm. D) 2156 cu cm. Show Answer Correct Answer: D) 2156 cu cm. 38. What is the place value to the left of 'ones'? A) Tens. B) Hundreds. C) Tenths. D) Thousandths. Show Answer Correct Answer: A) Tens. 39. What is the exponent and base of the expression below? $-4^5$ A) Base =-4 and exp = 5. B) Base = 4 and exp = 5. C) Base = 5 and exp =-4. D) Base = 5 and exp = 4. Show Answer Correct Answer: B) Base = 4 and exp = 5. 40. What is the rule to multiply with exponents? A) Add the bases and multiply the exponents. B) Keep the bases and multiply exponents. C) Keep the bases and add the exponents. D) Add the bases and add the exponents. Show Answer Correct Answer: C) Keep the bases and add the exponents. 41. Which of the following statements is true?Statement-1:If $x=\left(\frac{2}{3}\right)^4\div\left(\frac{2}{3}\right)^2$ $x^2+2x+3=0$ $\left(-\frac{1}{2}\right)^4\times\left(-2\right)^8=\left(-2\right)^{4x}$ A) Only Statement-1. B) Only Statement-2. C) Both Statement-1 and Statement-2. D) Neither Statement-1 nor Statement-2. Show Answer Correct Answer: B) Only Statement-2. 42. What is the value of (2$^{3}$)$^{2}$? A) 64. B) 16. C) 32. D) 128. Show Answer Correct Answer: A) 64. 43. Simplify with no negative exponents:x$^{-3}$ A) X$^{3}$. B) 1/ x$^{-3}$. C) -3x. D) 1/ x$^{3}$. Show Answer Correct Answer: D) 1/ x$^{3}$. 44. $\left(2x^3y^4z^5\right)^8$ A) $2^8x^{24}y^{32}z^{40}$. B) $16x^{24}y^{32}z^{40}$. C) $256xyz$. D) $256x^{24}y^{32}z^{40}$. Show Answer Correct Answer: D) $256x^{24}y^{32}z^{40}$. 45. What is the value of-5$^{6}$? A) -15, 625. B) 15, 625. C) 30. D) -30. Show Answer Correct Answer: A) -15, 625. 46. What is the base in 8 raised to the power 2? A) 8. B) 2. C) None of these. D) None of the above. Show Answer Correct Answer: A) 8. 47. (-1)$^{20}$ is equal to: A) -1. B) 0. C) 20. D) 1. Show Answer Correct Answer: D) 1. 48. Find the value of 50 x 10$^{2}$ A) 50, 000. B) 500. C) 5, 000. D) 50. Show Answer Correct Answer: C) 5, 000. 49. What special word do you use for the exponent 2? A) Squared. B) Boxed. C) Triangled. D) Cubed. Show Answer Correct Answer: A) Squared. 50. The ratio of the radius and height of a solid cylinder is 2:3. If its volume is 12936 cu cm, find the total surface area of the cylinder. A) 1236 sq cm. B) 1345 sq cm. C) 3080 sq cm. D) 3185 sq cm. Show Answer Correct Answer: C) 3080 sq cm. 51. Simplify:(3$^{-1}$ x 5$^{-1}$)$^{-1}$ A) -15. B) -115. C) 15. D) 115. Show Answer Correct Answer: C) 15. 52. Khan Academy is? A) A place where you learn to play Khan. B) Klingon fighting academy. C) An online Math tutorial web site. D) A math game web site. Show Answer Correct Answer: C) An online Math tutorial web site. 53. Evaluate $\left(\frac{1}{3}\right)^3$ A) 9. B) $\frac{1}{9}$. C) $\frac{1}{27}$. D) 27. Show Answer Correct Answer: C) $\frac{1}{27}$. 54. Simplify the following:(x$^{2}$y)$^{5}$ A) X$^{2}$y$^{5}$. B) X$^{7}$y$^{5}$. C) X$^{10}$y$^{5}$. D) X$^{5}$y$^{5}$. Show Answer Correct Answer: C) X$^{10}$y$^{5}$. 55. The exponential form of 64 is: A) 3$^{4}$. B) 2$^{6}$. C) 2$^{5}$. D) 2$^{7}$. Show Answer Correct Answer: B) 2$^{6}$. 56. 000 is equivalent to A) 10$^{-5}$. B) 10$^{4}$. C) 10$^{5}$. D) 10$^{-4}$. Show Answer Correct Answer: A) 10$^{-5}$. 57. What is the result of 5$^{2}$ x 5$^{3}$? A) 5$^{4}$. B) 5$^{6}$. C) 5$^{5}$. D) 5$^{7}$. Show Answer Correct Answer: C) 5$^{5}$. 58. How do you multiply two powers with the same base, such as a$^{m}$ and a$^{n}$? A) You raise the base to the power of the sum:(a$^{m}$)$^{n}$. B) You subtract the exponents:a$^{m-n}$. C) You multiply the bases:a$^{m}$ * a$^{n}$. D) You add the exponents:a$^{m+n}$. Show Answer Correct Answer: D) You add the exponents:a$^{m+n}$. 59. What is 10 x 10 x 10 x 10 written as an exponent? A) 10$^{4}$. B) 40, 000. C) 10$^{2}$. D) 10, 000. Show Answer Correct Answer: A) 10$^{4}$. 60. 3$^{-2}$ x 3$^{-5}$ is equal to: A) 3$^{-10}$. B) 3$^{7}$. C) 3$^{-7}$. D) 3$^{-3}$. Show Answer Correct Answer: C) 3$^{-7}$. ← PreviousNext →Related QuizzesMathematics QuizzesClass 8 QuizzesClass 8 Maths Chapter 12 Exponents And Powers Quiz 1Class 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 7 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books