This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Maths Chapter 12 Exponents And Powers – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Maths Chapter 12 Exponents And Powers Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is an exponent? A) An exponent is a number that shows how many times the base is multiplied by itself. B) An exponent is a number that indicates the square root of a base. C) An exponent is a number that represents the addition of a base. D) An exponent is a number that shows the division of a base. Show Answer Correct Answer: A) An exponent is a number that shows how many times the base is multiplied by itself. 2. ) Simplify(45x$^{6}$y$^{2}$)/(5x$^{4}$y$^{9}$) A) (9x$^{2}$)/y$^{7}$. B) 40x$^{2}$y$^{7}$. C) 9x$^{2}$y$^{7}$. D) 9x$^{10}$y$^{11}$. Show Answer Correct Answer: A) (9x$^{2}$)/y$^{7}$. 3. If Tamara's horse eats about 5, 000 pounds of hay each year, how can you write 5, 000 using exponents? A) $5 \times 10^2$. B) $5 \times 10^1$. C) $5 \times 10^3$. D) $5 \times 10^4$. Show Answer Correct Answer: C) $5 \times 10^3$. 4. (2x$^{7}$)$^{3}$ A) 6x$^{21}$. B) 8x$^{21}$. C) 6x$^{10}$. D) 8x$^{10}$. Show Answer Correct Answer: B) 8x$^{21}$. 5. Simplify:$8\left(x^4\right)^{\frac{1}{2}}$ A) $4x^2$. B) $8x^2$. C) $4x^4$. D) $8x^4$. Show Answer Correct Answer: B) $8x^2$. 6. (x$^{3}$)$^{}$(x$^{2}$) A) X$^{-5}$. B) X$^{-6}$. C) X$^{6}$. D) X$^{5}$. Show Answer Correct Answer: D) X$^{5}$. 7. Which digit is in the tenths place in the number 8, 374, 625.1? A) 1. B) 2. C) 5. D) 6. Show Answer Correct Answer: A) 1. 8. Simplify:3$^{5}$ x 3$^{7}$ =? 3$^{2}$ A) 3$^{10}$. B) 3$^{14}$. C) 3$^{-4}$. D) 3$^{21}$. Show Answer Correct Answer: A) 3$^{10}$. 9. Write $a\times a\times a\times c\times c\times c\times c\times d\times d$ A) $a^3\times c^4\times d^2$. B) $a^4\times c^3\times d^2$. C) $a^3\times c^2\times d^3$. D) $a^3\times c^3\times d^3$. Show Answer Correct Answer: A) $a^3\times c^4\times d^2$. 10. Before learning to multiply and divide by Powers of 10, what concept do we need to review? A) Addition. B) Subtraction. C) Place Value. D) Division. Show Answer Correct Answer: C) Place Value. 11. 5$^{4}$/5$^{2}$ is equal to: A) 5$^{6}$. B) 5$^{-6}$. C) 5$^{-2}$. D) 5$^{2}$. Show Answer Correct Answer: D) 5$^{2}$. 12. How do you know if a number is divisible by 6? A) It is an even number. B) It ends in 6. C) The sum of the digits is 6. D) It is divisible by 2 and 3. Show Answer Correct Answer: D) It is divisible by 2 and 3. 13. Which expression is equivalent to 9$^{5}$? A) 9 x 5. B) 5 x 5 x 5 x 5 x 5 x 5 x 5 x 5 x 5. C) 9 x 9 x 9 x 9 x 9. D) 9 x 9 x 9 x 9 x 9 x 5 x 5 x 5 x 5 x 5 x 5 x 5 x 5 x 5. Show Answer Correct Answer: C) 9 x 9 x 9 x 9 x 9. 14. (2a$^{2}$b$^{4}$z)(6a$^{3}$b$^{2}$z$^{5}$) A) 8a$^{5}$b$^{6}$z$^{6}$. B) 12a$^{6}$b$^{8}$z$^{5}$. C) 12a$^{5}$b$^{6}$z$^{6}$. D) 8a$^{6}$b$^{8}$z$^{5}$. Show Answer Correct Answer: C) 12a$^{5}$b$^{6}$z$^{6}$. 15. Simplify:(6x$^{2}$)(-3x$^{5}$) A) 18x$^{7}$. B) -18x$^{7}$. C) 18x$^{7}$. D) 3$^{}$x$^{7}$. Show Answer Correct Answer: B) -18x$^{7}$. 16. A raise to 8 A) Axaxaxaxaxa. B) 8x8x8x8x8x8x8x8. C) Axaxaxaxa. D) Ax8xax8xax8. Show Answer Correct Answer: A) Axaxaxaxaxa. 17. ) Simplify(16x$^{4}$y$^{-5}$)/(8a$^{3}$b$^{-8}$) A) (a$^{3}$y$^{5}$)/(2x$^{4}$b$^{8}$). B) (2x$^{4}$b$^{8}$)/(a$^{3}$y$^{5}$). C) (8x$^{4}$b$^{8}$)/(a$^{3}$y$^{5}$). D) 2x$^{4}$b$^{8}$a$^{3}$y$^{5}$. Show Answer Correct Answer: B) (2x$^{4}$b$^{8}$)/(a$^{3}$y$^{5}$). 18. Simplify the expression:$\frac{3^4}{3^2}$ A) $3^1$. B) $3^2$. C) $3^3$. D) $3^4$. Show Answer Correct Answer: B) $3^2$. 19. Simplify 7$^{-2}$ A) 1/7$^{2 }$= 1/49. B) -49. C) -14. D) 1/14. Show Answer Correct Answer: A) 1/7$^{2 }$= 1/49. 20. 6 raise to 5 and 9 raise to 5 A) 14 raise 5. B) 15 raise to 5. C) 13 raise to 5. D) 16 raise to 5. Show Answer Correct Answer: B) 15 raise to 5. 21. 10$^{0 }$ is which? A) 10. B) 0. C) 1. D) 100. Show Answer Correct Answer: C) 1. 22. The value of (3$^{4}$)$^{3}$ is: A) 3. B) 3$^{12}$. C) 3$^{7}$. D) None of the above. Show Answer Correct Answer: B) 3$^{12}$. 23. Isaac takes 5 minutes to ride his bike down the hill to school and 10 minutes to ride up the hill from school. He attends school Monday through Friday. How many minutes does he spend biking to and from school in two weeks? A) 150 minutes. B) 200 minutes. C) 300 minutes. D) 100 minutes. Show Answer Correct Answer: B) 200 minutes. 24. What is the exponent form? A) $10^3$. B) $10^4$. C) $10^5$. D) None of the above. Show Answer Correct Answer: B) $10^4$. 25. RxRxRxRxRxRxR A) 6 raise to R. B) 5 raise to R. C) 7 raise to R. D) 8 raise to r. Show Answer Correct Answer: C) 7 raise to R. ← 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 9Class 8 Maths Chapter 12 Exponents And Powers Quiz 10Class 8 Maths Chapter 12 Exponents And Powers Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books