This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Mathematics Chapter 11 Exponents And Powers – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Write each power as a product then find its value:4$^{3}$ A) 4X4X4, 12. B) 3x3x3x3, 64. C) 4x4x4, 64. D) 4x4x4, 32. Show Answer Correct Answer: C) 4x4x4, 64. 2. Express the number 72 in terms of its prime factors. A) $2^3 \times 3^2$. B) $2^2 \times 3^3$. C) $2^4 \times 3^2$. D) $2^3 \times 3^4$. Show Answer Correct Answer: A) $2^3 \times 3^2$. 3. Rewrite using the exponential form. (a)(a)(a)(b)(b)(c)(c)(c)(c)(d) A) A$^{3}$b$^{2}$c$^{3}$d$^{1}$. B) A$^{3}$b$^{2}$c$^{4}$d$^{1}$. C) A$^{3}$b$^{2}$c$^{4}$. D) A$^{3}$b$^{3}$c$^{4}$d$^{1}$. Show Answer Correct Answer: B) A$^{3}$b$^{2}$c$^{4}$d$^{1}$. 4. (t$^{-6}$)$^{-5}$ A) T$^{-11}$. B) T$^{-30}$. C) T$^{30}$. D) T$^{11}$. Show Answer Correct Answer: C) T$^{30}$. 5. 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. 6. What equals 3$^{3}$ A) 27. B) 9. C) 81. D) 12. Show Answer Correct Answer: A) 27. 7. What is the base in $x^y$ A) Xy. B) X+y. C) X. D) Y. Show Answer Correct Answer: C) X. 8. 10$^{2}$ = A) 100. B) 0.001. C) 10. D) 0.1. Show Answer Correct Answer: A) 100. 9. 10$^{1}$ A) 10. B) 100. C) 1, 000. D) 10, 000. Show Answer Correct Answer: A) 10. 10. According to exponent rules, when we multiply the expressions we ..... the exponents. A) Add. B) Subtract. C) Multiply. D) Divide. Show Answer Correct Answer: A) Add. 11. (3xy$^{6}$)$^{4}$ A) 81x$^{4}$y$^{24}$. B) 3x$^{4}$y$^{24}$. C) 3x$^{}$y$^{24}$. D) 81xy$^{24}$. Show Answer Correct Answer: A) 81x$^{4}$y$^{24}$. 12. BY WHAT NUMBER SHOULD $\left(-5\right)^{-1}$ $\left(8\right)^{-1}$ A) $\frac{8}{5}$. B) $\frac{5}{8}$. C) $\frac{-8}{5}$. D) $\frac{-5}{8}$. Show Answer Correct Answer: D) $\frac{-5}{8}$. 13. Which of the following numbers are perfect squares on the list:9, 25, 36, 50, 81? A) 9 e 25. B) 36 e 50. C) 25 e 81. D) 9, 36 e 81. Show Answer Correct Answer: D) 9, 36 e 81. 14. Simplify 4$^{0 }$= A) 0. B) 1. C) 4. D) -4. Show Answer Correct Answer: B) 1. 15. Simplify the expression 1$^{ }$/ 4$^{-2}$ A) 4$^{2}$. B) 1/4$^{2}$. C) There is no property for this. D) The correct answer is not here. Show Answer Correct Answer: A) 4$^{2}$. 16. Evaluate 2$^{4}$ A) 8. B) 20. C) 16. D) 12. Show Answer Correct Answer: C) 16. 17. What is this as repeated multiplication? $10^4$ A) 10 x 4. B) 10. C) 4. D) 10 x 10 x 10 x 10. Show Answer Correct Answer: D) 10 x 10 x 10 x 10. 18. Simplify the following expression:(2x$^{3}$y)$^{6}$ A) 2x$^{18}$y$^{6}$. B) 64x$^{18}$y$^{6}$. C) 64x$^{3}$y$^{6}$. D) 2x$^{3}$y$^{6}$. Show Answer Correct Answer: B) 64x$^{18}$y$^{6}$. 19. Find the value. $2^5$ A) 2x5. B) 16. C) 10. D) 32. Show Answer Correct Answer: D) 32. 20. What is the exponent if we write-2 x 2 x 2 x 2 x 2 using a power? A) 2. B) -2. C) 5. D) -5. Show Answer Correct Answer: C) 5. 21. 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. 22. The rule of scientific notation is to write all exponents with a base of ..... A) 50. B) 5. C) 100. D) 10. Show Answer Correct Answer: D) 10. 23. $y^4$ A) $y\times4$. B) $4y$. C) $y\cdot y\cdot y\cdot y$. D) None of the above. Show Answer Correct Answer: C) $y\cdot y\cdot y\cdot y$. 24. Calculate $\left(\frac{2}{5}\right)^4$ A) $\frac{2}{5}$. B) $\frac{8}{20}$. C) $\frac{16}{5}$. D) $\frac{16}{625}$. Show Answer Correct Answer: D) $\frac{16}{625}$. 25. What is $2^4$ A) 8. B) 2. C) 16. D) 4. Show Answer Correct Answer: C) 16. ← PreviousNext →Related QuizzesClass 7 Mathematics Chapter 11 Exponents And Powers Quiz 1Class 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 10Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books