This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Mathematics Chapter 11 Exponents And Powers – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 18 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Simplify(3x$^{3}$y$^{5}$)$^{4}$ A) 3x$^{12}$y$^{20}$. B) 81x$^{12}$y$^{20}$. C) 12x$^{12}$y$^{20}$. D) 81x$^{7}$y$^{9}$. Show Answer Correct Answer: B) 81x$^{12}$y$^{20}$. 2. $-5^2\times-3^3$ A) -675. B) -1251. C) 13632. D) 38223. Show Answer Correct Answer: A) -675. 3. What is the value of $[-4]^3$ A) -12. B) -64. C) 12. D) 64. Show Answer Correct Answer: B) -64. 4. Six cubed is the same as A) 6$^{2}$. B) 6$^{3}$. C) 6$^{4}$. D) 6$^{1}$. Show Answer Correct Answer: B) 6$^{3}$. 5. Write (x + 2)(x + 2)(x + 3) using exponents. A) (x + 2)$^{3}$. B) (x + 2)(x + 3). C) (x + 3)$^{3}$. D) (x + 2)$^{2}$(x + 3). Show Answer Correct Answer: D) (x + 2)$^{2}$(x + 3). 6. What do you call the number 4 in 2$^{4}$? A) Base. B) Exponent. C) All the above. D) None of the above. Show Answer Correct Answer: B) Exponent. 7. $11^2\+4^4=$ A) 121+256=377. B) 120+255=375. C) 11+16=27. D) 121+266=387. Show Answer Correct Answer: A) 121+256=377. 8. What is $\left(-16\right)^0$ A) 1. B) -1. C) 16. D) -16. Show Answer Correct Answer: A) 1. 9. Simplify:$\left(-2\right)^3\left(-2\right)^6$ A) $\left(-2\right)^9$. B) $\left(-2\right)^{18}$. C) $\left(-2\right)^3$. D) (-2). Show Answer Correct Answer: A) $\left(-2\right)^9$. 10. Evaluate 5$^{2}$ A) 25. B) 10. C) 55. D) 30. Show Answer Correct Answer: A) 25. 11. Which power represents:9 x 9 x 9 A) 9$^{0}$. B) 9$^{2}$. C) 9$^{3}$. D) 9$^{2}$. Show Answer Correct Answer: C) 9$^{3}$. 12. If the exponent is a negative number the original number was ..... A) A really large number. B) A really small number. C) All the above. D) None of the above. Show Answer Correct Answer: B) A really small number. 13. In $10^2$ A) 10. B) 1. C) 2. D) $10^2$. Show Answer Correct Answer: C) 2. 14. Evaluate:3$^{3}$ A) 9. B) 27. C) 81. D) 57. Show Answer Correct Answer: B) 27. 15. How would you represent 10x10x10 as a power of ten? A) $10^2$. B) $10^3$. C) $10^{-3}$. D) $-10^3$. Show Answer Correct Answer: B) $10^3$. 16. This number tells how many times to take the base as a factor A) Base. B) Exponent. C) Perfect square. D) ( ). Show Answer Correct Answer: B) Exponent. 17. 3$^{5}$ A) 6. B) 27. C) 81. D) 243. Show Answer Correct Answer: D) 243. 18. Evaluate $\left[\left\{\left(\frac{x}{y}\right)^{-16}\right\}^{\frac{1}{2}}\right]^{-\frac{3}{8}}$ A) $\left(\frac{x}{y}\right)^2$. B) $\left(\frac{x}{y}\right)^{\frac{3}{8}}$. C) $\left(\frac{x}{y}\right)^3$. D) $\left(\frac{x}{y}\right)^4$. Show Answer Correct Answer: C) $\left(\frac{x}{y}\right)^3$. 19. What is 2 to the power of 4? A) 2. B) 4. C) 8. D) 16. Show Answer Correct Answer: D) 16. 20. Solve:$\left(1+1\right)^5+3^3$ A) 62. B) 59. C) 57. D) 86. Show Answer Correct Answer: B) 59. 21. 24) Write the power as a product of the same factor, then find the value:3$^{7}$ A) 7 x 7 x 7; 343. B) 3 x 3 x 3 x 3 x 3 x 3 x 3; 21. C) 7 x 7 x 7; 21. D) 3 x 3 x 3 x 3 x 3 x 3 x 3; 2, 187. Show Answer Correct Answer: D) 3 x 3 x 3 x 3 x 3 x 3 x 3; 2, 187. 22. $\frac{1}{a^{-5}}$ A) $a^{-5}$. B) $\frac{a}{5}$. C) $a^5$. D) $\frac{5}{a}$. Show Answer Correct Answer: C) $a^5$. 23. Simplify.10$^{0}$ = A) 0. B) 1. C) 10. D) Something else. Show Answer Correct Answer: B) 1. 24. Another way to say three to the third power is A) Three cubed. B) Three squared. C) All the above. D) None of the above. Show Answer Correct Answer: A) Three cubed. 25. If 9 x 3$^{n}$ = 3$^{6 }$. What is the value of n? A) 2. B) 4. C) 6. D) 8. Show Answer Correct Answer: B) 4. ← 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