This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Mathematics Chapter 11 Exponents And Powers – Quiz 30 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 30 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A$^{-m}$ = A) $\frac{1}{a^m}$. B) A$^{m}$. C) $\frac{1}{a^{-m}}$. D) None of the these. Show Answer Correct Answer: A) $\frac{1}{a^m}$. 2. Write the expression using exponents. $m\cdot m\cdot m\cdot m\cdot m$ A) $m^5$. B) $-m^5$. C) $m^4$. D) $5^m$. Show Answer Correct Answer: A) $m^5$. 3. How would you write x$^{5}$y$^{3}$z$^{2 }$in expanded form? A) X$^{. }$x $^{. }$x$^{.}$ x $^{. }$y $^{. }$y$^{.}$ y$^{. }$z $^{. }$z. B) X$^{5. }$y$^{3.}$ z$^{2}$. C) X$^{.}$ x $^{. }$x $^{.}$ x$^{. }$x$^{.}$ y $^{.}$ y $^{.}$ y$^{. }$z $^{.}$ z. D) Xyz $^{.}$ 10. Show Answer Correct Answer: C) X$^{.}$ x $^{. }$x $^{.}$ x$^{. }$x$^{.}$ y $^{.}$ y $^{.}$ y$^{. }$z $^{.}$ z. 4. What is the value of the expression 3$^{3}$ A) 9. B) 6. C) 27. D) 81. Show Answer Correct Answer: C) 27. 5. Find the value $-2^3$ A) $-9$. B) $-8$. C) $-6$. D) $6$. Show Answer Correct Answer: B) $-8$. 6. Evaluate:458$^{0}$ A) 458. B) 0. C) 229. D) 1. Show Answer Correct Answer: D) 1. 7. $\frac{-28n^6}{4n^3}$ A) $ Han^p $. B) $ Han^A $. C) $ Hen^A $. D) $8n^3$. Show Answer Correct Answer: C) $ Hen^A $. 8. Solve:$4\+5^3$ A) 43. B) 121. C) 129. D) 729. Show Answer Correct Answer: C) 129. 9. Write $\left(-2\right)\cdot\left(-2\right)\cdot\left(-2\right)\cdot3\cdot3\cdot3\cdot3$ A) $-\left(2\right)^3\cdot3^4$. B) $\left(-2\right)^3\cdot4^3$. C) $\left(-2\right)^3\cdot3^4$. D) None of the above. Show Answer Correct Answer: C) $\left(-2\right)^3\cdot3^4$. 10. Evaluate.1$^{8}$ = A) 8. B) 1. C) 0. D) 18. Show Answer Correct Answer: B) 1. 11. 000:Change to scientific notation A) 1.25678 x 10$^{12}$. B) .125678 x 10$^{-9}$. C) 12.5678 x 10$^{8}$. D) 1.25678 x 10$^{8}$. Show Answer Correct Answer: D) 1.25678 x 10$^{8}$. 12. According to exponent rules, when we multiply exponential expressions we ..... the exponents. A) Add. B) Subtract. C) Multiply. D) Divide. Show Answer Correct Answer: A) Add. 13. $\frac{x^8}{x^5}$ A) $x^3$. B) $x^{-3}$. C) $1^4$. D) None of the above. Show Answer Correct Answer: A) $x^3$. 14. Simplify the following expression:(7a$^{2}$)(5a$^{6}$b)$^{2}$ A) Akha $^{14} $ B $^{a} $. B) 175a$^{12}$b$^{2}$. C) 175a$^{14}$b$^{2}$. D) Akhta $^{14} $ b. Show Answer Correct Answer: C) 175a$^{14}$b$^{2}$. 15. Evaluate the expression x$^{2 }$-x; x = 6 A) 30. B) 6. C) 42. D) 12. Show Answer Correct Answer: A) 30. 16. Simplify the following using laws of exponent. $9^7\\\times\\9^3$ A) $9^{10}$. B) $9^4$. C) $9^{21}$. D) None of the above. Show Answer Correct Answer: A) $9^{10}$. 17. $4\cdot b\cdot b\cdot4\cdot b\cdot b$ A) $4^2\cdot b^3$. B) $4^3\cdot b^3$. C) $4^2\cdot b^4$. D) $4^4\cdot b^2$. Show Answer Correct Answer: C) $4^2\cdot b^4$. 18. Evaluate. 4, 768$^{0 }$= A) 4, 768. B) 0. C) 1. D) None of the above. Show Answer Correct Answer: C) 1. 19. The value of 2$^{-2}$ is: A) 4. B) 1/4. C) 2. D) 1/2. Show Answer Correct Answer: B) 1/4. 20. How do you correctly say 4$^{3}$ A) 4 squared. B) 3 quadrupled. C) 4 cubed. D) 4 to the power of 2. Show Answer Correct Answer: C) 4 cubed. 21. In order to multiply powers with the same base, we add their exponents. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 22. Which expression has an exponent of 5? A) 555. B) 5$^{4}$. C) 8$^{5}$. D) None of the above. Show Answer Correct Answer: C) 8$^{5}$. 23. Evaluate 5$^{0}$ A) 1. B) 5. C) 0. D) None of the above. Show Answer Correct Answer: A) 1. 24. In the exponent 3$^{4}$, the three represents ..... ? A) Power. B) Base. C) Exponent. D) Integers. Show Answer Correct Answer: B) Base. 25. Which power of ten is always equal to 1? A) $10^{-1}$. B) $10^0$. C) $10^1$. D) $10^2$. Show Answer Correct Answer: B) $10^0$. ← PreviousNext →Related 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 8Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 9Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books