This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Mathematics > Exponents And Powers > Class 7 Mathematics Chapter 11 Exponents And Powers – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Simplify 4$^{-2}$= A) -42. B) -16. C) 1/4. D) 1/16. Show Answer Correct Answer: D) 1/16. 2. (x$^{8}$)(x$^{-5}$) A) X$^{13}$. B) X$^{-13}$. C) X$^{-40}$. D) X$^{3}$. Show Answer Correct Answer: D) X$^{3}$. 3. SIMPLIFY:$\left(\frac{2}{3}\right)^5\times\left(\frac{2}{3}\right)$ A) $\left(\frac{4}{9}\right)^5$. B) $\left(\frac{2}{3}\right)^5$. C) $\left(\frac{4}{9}\right)^6$. D) $\left(\frac{2}{3}\right)^6$. Show Answer Correct Answer: D) $\left(\frac{2}{3}\right)^6$. 4. Write the expression using exponents.6 6 47 A) 62 * 47. B) 6$^{2}$ * 47. C) 4$^{7}$ * 62. D) 47$^{2}$ * 6. Show Answer Correct Answer: B) 6$^{2}$ * 47. 5. Which among the exponential form has the result of 1, 000? A) $10^4$. B) 10 x 10 x 10. C) $10^3$. D) 1, 000. Show Answer Correct Answer: C) $10^3$. 6. (y$^{9}$)$^{-2}$ A) Y$^{9}$/2. B) Y$^{11}$. C) Y$^{18}$. D) 1/y$^{18}$. Show Answer Correct Answer: D) 1/y$^{18}$. 7. What is the 7$^{1 }$? A) 7. B) 0. C) 14. D) 1. Show Answer Correct Answer: A) 7. 8. In the following statement, which number is the value? A) 8. B) 2. C) 64. D) None of the above. Show Answer Correct Answer: C) 64. 9. Simplify ..... 3 $^{. }$12$^{.}$ m $^{.}$ m$^{.}$ m $^{. }$n $^{. }$n $^{. }$n A) 24m$^{2}$n$^{3}$. B) 36m$^{3}$n$^{3}$. C) Pronounced. D) 3 $^{.}$ 12 $^{. }$m$^{3. }$n$^{3}$. Show Answer Correct Answer: B) 36m$^{3}$n$^{3}$. 10. Express 243 as the product of powers of prime factors. A) $3^4$. B) $3^2$. C) $3^3$. D) $3^5$. Show Answer Correct Answer: D) $3^5$. 11. $Simplify:\\\\\frac{45a^4b^2}{5a^4b}$ A) $9$. B) 9b. C) $ $. D) $ P. $. Show Answer Correct Answer: B) 9b. 12. Find the value of $4\times10^2$ A) 4, 000. B) 400. C) 40, 000. D) 40. Show Answer Correct Answer: B) 400. 13. (Ezz / 4 g $^{p} $) $^{p} $ A) 27z$^{3}$ / 64z$^{6}$. B) 27 / 64z$^{6}$. C) I note $^{i} $ / 64. D) 27z / 64z$^{9}$. Show Answer Correct Answer: B) 27 / 64z$^{6}$. 14. (x$^{14}$)$^{3}$ A) X$^{11}$. B) ZKS $^{14} $. C) X$^{17}$. D) X$^{42}$. Show Answer Correct Answer: D) X$^{42}$. 15. The product rule says that when you are multiplying two exponents with the same base, you keep the base and ..... the exponents A) Subtract. B) Multiply. C) Add. D) Divide. Show Answer Correct Answer: C) Add. 16. What is equivalent to 5$^{2}$? A) 30. B) 25. C) 10. D) 55. Show Answer Correct Answer: B) 25. 17. Express 4785.2 in standard form. A) 4.7852 x 10$^{3}$. B) 4.7852 x 10$^{2}$. C) 4.7852 x 10$^{-3}$. D) 4.7852 x 10$^{-2}$. Show Answer Correct Answer: A) 4.7852 x 10$^{3}$. 18. Simplify:$\left(-3x^3y^2\right)\left(-4x^4y^4\right)$ A) $-7x^{12}y^8$. B) $-7x^7y^6$. C) $-12x^7y^6$. D) $-12x^{12}y^8$. Show Answer Correct Answer: C) $-12x^7y^6$. 19. Write the expression (-7)(-7)5555 using exponents. A) (-7)$^{2}$ x 5$^{3}$. B) (5)$^{4}$ (-7)$^{2}$. C) 5$^{3}$. (-7)$^{2}$. D) (-7)$^{2}$. 5$^{3}$. Show Answer Correct Answer: B) (5)$^{4}$ (-7)$^{2}$. 20. $\left(5^2-4\right)\cdot2-18$ A) 20. B) 22. C) 28. D) 24. Show Answer Correct Answer: D) 24. 21. How many squares are in one row of a square time game with 100 squares? A) 10. B) 20. C) 5. D) 50. Show Answer Correct Answer: A) 10. 22. The square root of 256 is ..... A) 16. B) 18. C) 15. D) 13. Show Answer Correct Answer: A) 16. 23. $-3^2$ $\times$ $10^4$ A) 13000. B) 90000. C) 18900. D) 201113. Show Answer Correct Answer: B) 90000. 24. Write each power as a product then find its value:4$^{3}$ A) 4x4x4, 64. B) 4X4X4, 12. C) 3x3x3x3, 64. D) 4x4x4, 32. Show Answer Correct Answer: A) 4x4x4, 64. 25. Express the number 72 in terms of its prime factors. A) $2^2 \times 3^3$. B) $2^3 \times 3^2$. C) $2^3 \times 3^4$. D) $2^4 \times 3^2$. Show Answer Correct Answer: B) $2^3 \times 3^2$. 26. Rewrite using the exponential form. (a)(a)(a)(b)(b)(c)(c)(c)(c)(d) A) A$^{3}$b$^{3}$c$^{4}$d$^{1}$. B) A$^{3}$b$^{2}$c$^{4}$d$^{1}$. C) A$^{3}$b$^{2}$c$^{3}$d$^{1}$. D) A$^{3}$b$^{2}$c$^{4}$. Show Answer Correct Answer: B) A$^{3}$b$^{2}$c$^{4}$d$^{1}$. 27. (t$^{-6}$)$^{-5}$ A) T$^{-30}$. B) T$^{11}$. C) T$^{30}$. D) T$^{-11}$. Show Answer Correct Answer: C) T$^{30}$. 28. True or False:Defination of Exponent-It is a number which represents the number of times A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 29. What equals 3$^{3}$ A) 81. B) 27. C) 12. D) 9. Show Answer Correct Answer: B) 27. 30. What is the base in $x^y$ A) Xy. B) Y. C) X+y. D) X. Show Answer Correct Answer: D) X. 31. (3xy$^{6}$)$^{4}$ A) 3x$^{4}$y$^{24}$. B) 3x$^{}$y$^{24}$. C) 81xy$^{24}$. D) 81x$^{4}$y$^{24}$. Show Answer Correct Answer: D) 81x$^{4}$y$^{24}$. 32. BY WHAT NUMBER SHOULD $\left(-5\right)^{-1}$ $\left(8\right)^{-1}$ A) $\frac{8}{5}$. B) $\frac{-8}{5}$. C) $\frac{5}{8}$. D) $\frac{-5}{8}$. Show Answer Correct Answer: D) $\frac{-5}{8}$. 33. Which of the following numbers are perfect squares on the list:9, 25, 36, 50, 81? A) 25 e 81. B) 9 e 25. C) 9, 36 e 81. D) 36 e 50. Show Answer Correct Answer: C) 9, 36 e 81. 34. Simplify 4$^{0 }$= A) 0. B) -4. C) 1. D) 4. Show Answer Correct Answer: C) 1. 35. Simplify the expression 1$^{ }$/ 4$^{-2}$ A) There is no property for this. B) 1/4$^{2}$. C) The correct answer is not here. D) 4$^{2}$. Show Answer Correct Answer: D) 4$^{2}$. 36. Evaluate 2$^{4}$ A) 8. B) 12. C) 16. D) 20. Show Answer Correct Answer: C) 16. 37. What is this as repeated multiplication? $10^4$ A) 10. B) 10 x 10 x 10 x 10. C) 4. D) 10 x 4. Show Answer Correct Answer: B) 10 x 10 x 10 x 10. 38. Simplify the following expression:(2x$^{3}$y)$^{6}$ A) 2x$^{3}$y$^{6}$. B) 2x$^{18}$y$^{6}$. C) 64x$^{3}$y$^{6}$. D) 64x$^{18}$y$^{6}$. Show Answer Correct Answer: D) 64x$^{18}$y$^{6}$. 39. Find the value. $2^5$ A) 2x5. B) 16. C) 10. D) 32. Show Answer Correct Answer: D) 32. 40. What is the exponent if we write-2 x 2 x 2 x 2 x 2 using a power? A) -5. B) -2. C) 2. D) 5. Show Answer Correct Answer: D) 5. 41. Solve using order of operations:7 + (12-$^{}$3$^{2}$) A) 10. B) 88. C) 13. D) None of the above. Show Answer Correct Answer: A) 10. 42. The rule of scientific notation is to write all exponents with a base of ..... A) 50. B) 5. C) 10. D) 100. Show Answer Correct Answer: C) 10. 43. Calculate $\left(\frac{2}{5}\right)^4$ A) $\frac{8}{20}$. B) $\frac{2}{5}$. C) $\frac{16}{5}$. D) $\frac{16}{625}$. Show Answer Correct Answer: D) $\frac{16}{625}$. 44. Evaluate (-2)$^{6}$ A) -64. B) 64. C) -12. D) None of the above. Show Answer Correct Answer: B) 64. 45. Simplify the following:y$^{6}$/y$^{4}$ A) 1/$^{}$y$^{2}$. B) Y$^{2}$. C) Y$^{10}$. D) Y$^{-2}$. Show Answer Correct Answer: B) Y$^{2}$. 46. Solve for x if x$^{2}$ = 144. A) 4. B) 11. C) 12. D) 14. Show Answer Correct Answer: C) 12. 47. In the expression 2$^{3}$, what does the 2 represent? A) Base. B) Exponent. C) Power. D) None of the above. Show Answer Correct Answer: A) Base. 48. $3^2+12\div\left(6-3\right)\times8$ A) 41. B) 51. C) 31. D) 32. Show Answer Correct Answer: A) 41. 49. Which of the following is a Perfect Square? Which of the following is a perfect square? A) 110. B) 24. C) 81. D) 48. Show Answer Correct Answer: C) 81. 50. Find the value of the variable $c^{-2}=0.25$ A) $\frac{1}{5}$. B) $5$. C) $2$. D) $\frac{1}{2}$. Show Answer Correct Answer: C) $2$. 51. IN STANDARD FORM IS: A) $1.2759\cdot10^{12}$. B) $1.2759\cdot10^{11}$. C) $1.2759\cdot10^{13}$. D) None of the above. Show Answer Correct Answer: A) $1.2759\cdot10^{12}$. 52. Is 9 a perfect square? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 53. Which number is the BASE?2$^{3 }$= 8 A) 2. B) 3. C) 8. D) None of the above. Show Answer Correct Answer: A) 2. 54. Evaluate:$\left(\frac{-8}{-2}\right)^2$ A) 4. B) -4. C) -16. D) 16. Show Answer Correct Answer: D) 16. 55. What does LCM stand for? A) Least Common Multiple. B) Largest Common Multiple. C) Least Common Measure. D) Largest Common Measure. Show Answer Correct Answer: A) Least Common Multiple. 56. (5x $ ^ {2} $) $ ^ {0} $ (9X) $ ^ {2} $ A) 45x $ ^ {4} $. B) 0. C) 81x. D) 81x$^{2}$. Show Answer Correct Answer: D) 81x$^{2}$. 57. Evaluate 10$^{3}$ A) 1000. B) 30. C) 10. D) 100. Show Answer Correct Answer: A) 1000. 58. Simplify (-4x)$^{0}$ A) -4. B) -1. C) 4. D) 1. E) 0. Show Answer Correct Answer: D) 1. 59. What special word do you use for the exponent of 2? A) Cubed. B) Squared. C) Triangled. D) Boxed. Show Answer Correct Answer: B) Squared. 60. How do you say 3$^{4?}$ A) Thirty-four. B) 3 to the 4. C) 3 to the fourth power. D) None of the above. Show Answer Correct Answer: C) 3 to the fourth power. 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