This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Mathematics > Exponents And Powers > Class 7 Mathematics Chapter 11 Exponents And Powers – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 10 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Convert this number into scientific notation:0.068 A) 6.9 x 10$^{6}$. B) 6.8 x 10$^{-9}$. C) 6.8 x 10$^{-2}$. D) None of the above. Show Answer Correct Answer: C) 6.8 x 10$^{-2}$. 2. (X $^{h} $) $^{p} $ A) X $^{10} $. B) 8x $^{21} $. C) X $^{21} $. D) 8x $^{10} $. Show Answer Correct Answer: B) 8x $^{21} $. 3. What is the answer? $10^4$ A) 40. B) 10000. C) 4. D) 10. Show Answer Correct Answer: B) 10000. 4. Write each power as a product of the same factor. 3$^{7}$ A) 7x7x7. B) Reversal. C) 3x3x3x3x3x3x3. D) 3x3x3x3x3x3. Show Answer Correct Answer: C) 3x3x3x3x3x3x3. 5. Which is equivalent to 10$^{-1}$? A) 1. B) 0.1. C) 0.001. D) 0.01. Show Answer Correct Answer: B) 0.1. 6. (4x$^{5}$y$^{2}$)(6x$^{2}$y$^{3}$) A) 10x$^{10}$y$^{6}$. B) 24x $^{7} $ and $^{5} $. C) 24x $^{10} $ and $^{6} $. D) 10x$^{7}$y$^{5}$. Show Answer Correct Answer: B) 24x $^{7} $ and $^{5} $. 7. What number is 10 times as much as 70? A) 70. B) 700. C) 7, 000. D) 7. Show Answer Correct Answer: B) 700. 8. What does the exponent in a power represent? A) The exponent indicates the value of the base. B) The exponent represents the number of times the base is multiplied by itself. C) The exponent shows the total number of bases involved. D) The exponent is the result of the multiplication of the base. Show Answer Correct Answer: B) The exponent represents the number of times the base is multiplied by itself. 9. The reciprocal of $\left(\frac{2}{5}\right)^{-1}$ A) $\frac{2}{5}$. B) $\frac{5}{2}$. C) $-\frac{5}{2}$. D) $-\frac{2}{5}$. Show Answer Correct Answer: A) $\frac{2}{5}$. 10. Which of the following is in expanded form? A) 5 x 5 x 5. B) 5$^{3}$. C) 125. D) None of the above. Show Answer Correct Answer: A) 5 x 5 x 5. 11. Express each of the following as product of powers of their prime factors:3600 A) 2$^{4}$ x 3$^{2}$ x 5$^{2}$. B) 2$^{5}$ x 3$^{4}$ x 5$^{4}$. C) 5$^{5 }$x 4$^{3}$. D) None of the above. Show Answer Correct Answer: A) 2$^{4}$ x 3$^{2}$ x 5$^{2}$. 12. What is the value of any number raised to zero power? A) 10. B) The number itself. C) 1. D) 0. Show Answer Correct Answer: C) 1. 13. What is the exponential form for the expression? $\left(-2\right)\left(-2\right)\left(-2\right)$ A) $\left(-2\right)^3$. B) $\left(3\right)^{-2}$. C) $-8$. D) $\left(-2\right)^2$. Show Answer Correct Answer: A) $\left(-2\right)^3$. 14. What is the power of a number when squared? A) 2. B) 13. C) 6. D) 3. E) 1. Show Answer Correct Answer: A) 2. 15. Which is equivalent to 4 x 4 x 4 x 4 x 4 A) 4$^{4}$. B) 5$^{4}$. C) $^{}$4$^{6}$. D) 4$^{5}$. Show Answer Correct Answer: D) 4$^{5}$. 16. Which is a perfect square between 36 and 64 A) 61. B) 49. C) 25. D) 50. Show Answer Correct Answer: B) 49. 17. $11\cdot11\cdot11\cdot11$ A) I don't know. B) $11^2$. C) $11^4$. D) $11^8$. Show Answer Correct Answer: C) $11^4$. 18. Write the expression using exponents. $y\cdot y\cdot y$ A) $1^3$. B) $y^3$. C) $ and \cdot3 $. D) $3$. Show Answer Correct Answer: B) $y^3$. 19. Which number is the exponent?2$^{3}$ = 8 A) 2. B) 3. C) 8. D) None of the above. Show Answer Correct Answer: B) 3. 20. Simplify $\left(x^2y^3\right)^4$ A) $ X ^ 8Y ^ {12} $. B) $ x^6y^^7 $. C) $x^6y^{12}$. D) None of the above. Show Answer Correct Answer: A) $ X ^ 8Y ^ {12} $. 21. Evaluate (-4)$^{5}$ A) 20. B) 1024. C) -1024. D) None of the above. Show Answer Correct Answer: C) -1024. 22. There are 5$^{5}$ people waiting in line for a concert. If the concert auditorium will only hold 11$^{3}$, how many people will not be allowed to enter the concert. A) 1331. B) -1794. C) 1794. D) 3125. Show Answer Correct Answer: C) 1794. 23. Evaluate:b$^{2}$ if b = 4 A) 16. B) 4. C) 256. D) 8. Show Answer Correct Answer: A) 16. 24. Rewrite the expression as a power. (2$^{4}$)(2$^{5}$) A) 2$^{9}$. B) 4$^{9}$. C) 4$^{20}$. D) 2$^{20}$. Show Answer Correct Answer: A) 2$^{9}$. 25. Evaluate 10$^{1}$ A) 10. B) 1. C) -10. D) None of the above. Show Answer Correct Answer: A) 10. 26. $\frac{9^{18}}{9^3}=?$ A) $1^6$. B) $1^{15}$. C) $9^{15}$. D) $9^6$. Show Answer Correct Answer: C) $9^{15}$. 27. Evaluate $\left(-2\right)^6\div4^3$ A) -1. B) 4. C) 1. D) 2. Show Answer Correct Answer: C) 1. 28. If (25)$^{-2}$ = 5$^{n}$, then n = ..... A) N =-4. B) N = 4. C) N = 6. D) N =-6. Show Answer Correct Answer: A) N =-4. 29. Simplify (-9)$^{0}$$^{}$ A) 9. B) 1. C) -9. D) -1. Show Answer Correct Answer: B) 1. 30. Find the product. $4^8\cdot4^{-5}$ A) $4^3$. B) $4^{13}$. C) $4^{-3}$. D) $4^{-13}$. Show Answer Correct Answer: A) $4^3$. 31. 20) 32 x 32 x 32 x 32 A) 64. B) 33, 554, 432. C) 4$^{32}$. D) 32$^{4}$. Show Answer Correct Answer: D) 32$^{4}$. 32. 7$^{3}$$^{Write in EXPANDED FORM.}$ A) 7 x 7 x 7. B) 21. C) 343. D) 7 x 3. Show Answer Correct Answer: A) 7 x 7 x 7. 33. 2$^{3}$ is called a what? A) Base. B) Exponent. C) Power. D) None of the above. Show Answer Correct Answer: C) Power. 34. What is VALUE of 6$^{4?}$ A) 6 x 6 x 6. B) 4$^{6}$. C) 6. D) 6 x 6 x 6 x 6. Show Answer Correct Answer: D) 6 x 6 x 6 x 6. 35. How do you write 2 x 2 x 2 x 2 with an exponent? A) 4$^{2}$. B) 2$^{4}$. C) 2$^{2}$. D) None of the above. Show Answer Correct Answer: B) 2$^{4}$. 36. $\left(-\frac{1}{5}\right)\left(-\frac{1}{5}\right)\left(-\frac{1}{5}\right)\left(-\frac{1}{5}\right)$ A) $\left(-\frac{1}{5}\right)^2$. B) $\left(-\frac{1}{5}\right)^4$. C) $\left(\frac{1}{5}\right)^4$. D) $\left(-\frac{1}{5}\right)^{^8}$. Show Answer Correct Answer: C) $\left(\frac{1}{5}\right)^4$. 37. A scientist estimates that, after a certain amount of time, there would be 2$^{5}$. 3$^{3}$.10$^{5}$ bacteria in a Petri dish. How many bacteria is this? Write your answer in standard form. A) 10. B) 27, 000. C) 86, 400, 000. D) 100, 000. Show Answer Correct Answer: C) 86, 400, 000. 38. Simplify:(5ab$^{2}$)$^{2}$ A) 10ab$^{4}$. B) 25a$^{2}$b$^{4}$. C) $^{4} $. D) 10a$^{2}$b$^{4}$. Show Answer Correct Answer: B) 25a$^{2}$b$^{4}$. 39. What is the Exponent? $6.8^2$ A) 6.8. B) 2. C) All the above. D) None of the above. Show Answer Correct Answer: B) 2. 40. Calculate $-7^3$ A) -343. B) -21. C) 21. D) 343. Show Answer Correct Answer: A) -343. 41. 5 $^{2}$/$_{3 }$+ 4 $^{3}$/$_{5 }$ A) 9 $^{19}$/$_{30 }$hours. B) 10 $^{4}$/$_{15 }$hours. C) 10 hours. D) 9 $^{4/}$$_{15 }$hours. Show Answer Correct Answer: B) 10 $^{4}$/$_{15 }$hours. 42. Simplify $x^2\times x^4$ A) $x^4$. B) $x^2$. C) $x^6$. D) $x^8$. Show Answer Correct Answer: C) $x^6$. 43. How would you write 2x2x2x2x2 in exponential form? A) 2x5. B) 2$^{5}$. C) 32. D) None of the above. Show Answer Correct Answer: B) 2$^{5}$. 44. Write the product in exponential form:4 x 4 x 4 x 4 A) $4^4$. B) $4^5$. C) All the above. D) None of the above. Show Answer Correct Answer: A) $4^4$. 45. Write the product using exponents:$3^{ }\cdot3^{ }\cdot3\cdot3$ A) $3^4$. B) $3^3$. C) 81. D) 27. Show Answer Correct Answer: A) $3^4$. 46. Which expression is equivalent to(5$^{3}$)$^{4}$? A) 5$^{7}$. B) 5$^{12}$. C) 20$^{3}$. D) 1/5. Show Answer Correct Answer: B) 5$^{12}$. 47. According to the Product of Powers property, when we multiply exponential expressions we ..... the exponents. A) Subtract. B) Divide. C) Add. D) Multiply. Show Answer Correct Answer: C) Add. 48. What is the side length of a square that has an area of 36? A) 18. B) 1296. C) 9. D) 6. Show Answer Correct Answer: D) 6. 49. Evaluate 10$^{-2}$ A) 100. B) 0.01. C) 0.001. D) 20. Show Answer Correct Answer: B) 0.01. 50. Which of the following is equivalent to $\left(-2\right)^{-3}$ A) $6$. B) $-\frac{1}{8}$. C) $-\frac{2}{3}$. D) $8$. Show Answer Correct Answer: B) $-\frac{1}{8}$. 51. Write the expression m$^{-7}$ using a positive exponent. A) 1/m$^{7}$. B) -m$^{7}$. C) -1/m$^{7}$. D) M$^{7}$. Show Answer Correct Answer: A) 1/m$^{7}$. 52. $100^0+20^0+5^0$ A) 1/125. B) 25. C) 3. D) 125. Show Answer Correct Answer: C) 3. 53. What is 6$^{2}$? A) 36. B) 4. C) 12. D) 8. Show Answer Correct Answer: A) 36. 54. Write using exponents. (1/6)(1/6)(1/6)(1/6) A) 1/6$^{4}$. B) (1/6)$^{4}$. C) 1/1296. D) None of the above. Show Answer Correct Answer: B) (1/6)$^{4}$. 55. Simplify the expression (4$^{5}$)$^{2}$ A) 4$^{10}$. B) 4$^{3}$. C) 4$^{7}$. D) The correct answer is not here. Show Answer Correct Answer: A) 4$^{10}$. 56. 10 x 10 x 10 x 10 can be written as 10 to what power? A) 10. B) 10$^{4}$. C) 10$^{3}$. D) 10$^{2}$. Show Answer Correct Answer: B) 10$^{4}$. 57. Simplify(2a$^{2}$b$^{4}$z)(6a$^{3}$b$^{2}$z$^{5}$) A) 12a$^{5}$b$^{6}$z$^{6}$. B) 8a$^{6}$b$^{8}$z$^{5}$. C) 12a$^{6}$b$^{8}$z$^{5}$. D) 8a$^{5}$b$^{6}$z$^{6}$. Show Answer Correct Answer: A) 12a$^{5}$b$^{6}$z$^{6}$. 58. Simplify $2^8\times2^{-3}\times2^2\times2^{-4}$ A) $2^3$. B) $2$. C) $2^4$. D) $2^2$. Show Answer Correct Answer: A) $2^3$. 59. Simplify the expression using exponential notation:$\frac{m^5n^6}{m}$ A) $m^6n^6$. B) $mn$. C) $m^3n$. D) $m^4n^6$. Show Answer Correct Answer: D) $m^4n^6$. 60. Identify the operation:x$^{3}$ A) Square. B) Cube Root. C) Square Root. D) Cube. Show Answer Correct Answer: D) Cube. ← PreviousNext →Related QuizzesMathematics QuizzesClass 7 QuizzesClass 7 Mathematics Chapter 11 Exponents And Powers Quiz 1Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 2Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 3Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 4Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 5Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 6Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 7Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books