This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Maths Chapter 12 Exponents And Powers – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Maths Chapter 12 Exponents And Powers Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the value of $\left[\left(\frac{1}{2}\right)^4-\left(\frac{1}{4}\right)^3\right]\times2^6$ A) A. 3. B) 16. C) 64. D) $\frac{1}{3}$. Show Answer Correct Answer: A) A. 3. 2. $\left(4hj\right)^0$ A) $0$. B) $4h^1j^1$. C) $4$. D) $1$. Show Answer Correct Answer: D) $1$. 3. How can you write 10, 000 as a power of 10 using exponents? A) $10^2$. B) $10^3$. C) $10^4$. D) $10^5$. Show Answer Correct Answer: C) $10^4$. 4. Simplify the expression:$(2^3)^2$ A) $2^5$. B) $2^6$. C) $2^8$. D) $2^9$. Show Answer Correct Answer: C) $2^8$. 5. What is the power of a number? A) The power of a number is the result of raising the base to an exponent. B) The power of a number is the sum of its digits. C) The power of a number is the product of its factors. D) The power of a number is the difference between its highest and lowest digits. Show Answer Correct Answer: A) The power of a number is the result of raising the base to an exponent. 6. All negative numbers raised to the power 4 is always ..... A) Positive. B) Negative. C) All the above. D) None of the above. Show Answer Correct Answer: A) Positive. 7. $\left(3t^4\right)^3$ A) $3t^{12}$. B) $27t^{-12}$. C) $3^3t^{12}$. D) $27t^{12}$. Show Answer Correct Answer: D) $27t^{12}$. 8. Find the value10$^{0}$ A) 1. B) 10. C) 0. D) None of the above. Show Answer Correct Answer: A) 1. 9. Simplify the expression $x^5\cdot x^7$ A) X$^{35}$. B) X$^{12}$. C) X$^{2}$. D) X$^{-2}$. Show Answer Correct Answer: B) X$^{12}$. 10. Which of the following expressions is equivalent to 86, 000 A) 86 x 10$^{3}$. B) 8.6 x 10$^{2}$. C) 860 x 10. D) 8, 600 x 10$^{2}$. Show Answer Correct Answer: A) 86 x 10$^{3}$. 11. Change 5/8 into a decimal. A) 1.6. B) 5.8. C) .58. D) .625. Show Answer Correct Answer: D) .625. 12. What is 1000 written in exponential form? A) 10$^{3}$. B) 10$^{2}$. C) 10$^{4}$. D) 1000 is already in exponential form. Show Answer Correct Answer: A) 10$^{3}$. 13. 7 x 10$^{4}$ A) 70. B) 700. C) 70, 000. D) 700, 000. Show Answer Correct Answer: C) 70, 000. 14. Explain how to divide exponents with the same base without expanding. A) Subtract the exponents. B) Add the exponents. C) Multiply the exponents. D) Divide the exponents. Show Answer Correct Answer: A) Subtract the exponents. 15. How would you express the exponent expression below in expanded form? $-2^5$ A) (-2) (-2) (-2) (-2) (-2). B) (-) (2) (2) (2) (2) (2). C) (2)-(2)-(2)-(2). D) None of the above. Show Answer Correct Answer: B) (-) (2) (2) (2) (2) (2). 16. Which expression is greater:5$^{3}$ or 5x3? A) 5$^{3}$. B) 5 x 3. C) They are equal. D) The answer cannot be determined. Show Answer Correct Answer: A) 5$^{3}$. 17. EVALUATE \{ [2/3]$^{-2}$\}$^{2}$ A) 9/4. B) 81/16. C) 5/98. D) NONE OF THESE. Show Answer Correct Answer: B) 81/16. 18. 13$^{4}$/13$^{2}$ is equal to ..... A) 13$^{6}$. B) 1/13$^{6}$. C) 13$^{2}$. D) 1/13$^{2}$. Show Answer Correct Answer: C) 13$^{2}$. 19. A post is put every 6 feet along a fence around a rectangular field that is 42 ft long and 36 ft wide. How many posts are needed? A) 26. B) 20. C) 12. D) 10. Show Answer Correct Answer: A) 26. 20. $\left(2^{-1}+3^{-1}+5_{ }\right)^0$ A) 0. B) $\frac{35}{30}$. C) 1. D) 5. Show Answer Correct Answer: C) 1. 21. $\frac{18c^2}{-3c^3}$ A) $\frac{6}{c}$. B) $-6c^{ }$. C) $\frac{-6}{c}$. D) $\frac{18}{-3c}$. Show Answer Correct Answer: C) $\frac{-6}{c}$. 22. What expression is equivalent to $10^{20}\cdot10^2$ A) 2020. B) 40, 000. C) $10^{22}$. D) $10^{40}$. Show Answer Correct Answer: C) $10^{22}$. 23. Squares of whole numbers are called A) Exponents. B) Bases. C) Perfect squares. D) None of the above. Show Answer Correct Answer: C) Perfect squares. 24. (3z / 4z$^{3}$)$^{3}$ A) 27z$^{6}$ / 64. B) 27z / 64z$^{9}$. C) 27 / 64z$^{6}$. D) 27z$^{3}$ / 64z$^{6}$. Show Answer Correct Answer: C) 27 / 64z$^{6}$. 25. What number is the EXPONENT?2$^{3}$=8 A) 2. B) 3. C) 8. D) None of the above. Show Answer Correct Answer: B) 3. ← PreviousNext →Related QuizzesClass 8 Maths Chapter 12 Exponents And Powers Quiz 1Class 8 Maths Chapter 12 Exponents And Powers Quiz 2Class 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 7Class 8 Maths Chapter 12 Exponents And Powers Quiz 8Class 8 Maths Chapter 12 Exponents And Powers Quiz 9Class 8 Maths Chapter 12 Exponents And Powers Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books