This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Mathematics Chapter 11 Exponents And Powers – Quiz 25 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Mathematics Chapter 11 Exponents And Powers Quiz 25 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. EVALUATE:$\left(\frac{-4}{5}\right)^5$ A) $\frac{-1024}{3125}$. B) $\frac{-20}{25}$. C) $\frac{1024}{3125}$. D) $\frac{20}{25}$. Show Answer Correct Answer: A) $\frac{-1024}{3125}$. 2. TRUE/FALSE290 is 10 times as much as 2, 900 A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 3. Simplify the following expression:(3x$^{4}$y$^{5}$)$^{2}$ A) 9x$^{8}$y$^{10}$. B) 6x$^{8}$y$^{10}$. C) 3x$^{8}$y$^{10}$. D) X $^{8} $ y $^{10} $. Show Answer Correct Answer: A) 9x$^{8}$y$^{10}$. 4. True or false:$\left(3^2\right)^3=3^5$ A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 5. Compute the value of 3$^{2}$. A) 6. B) 5. C) 9. D) 8. Show Answer Correct Answer: C) 9. 6. In the expression below, is the variable b the base or the exponent? $b^y$ A) Base. B) Exponent. C) All the above. D) None of the above. Show Answer Correct Answer: A) Base. 7. Find the quotient. $\frac{x^{-5}}{x^{-7}}$ A) $\frac{1}{x^{13}}$. B) $\frac{1}{x^2}$. C) $x^3$. D) $x^2$. Show Answer Correct Answer: D) $x^2$. 8. 2$^{3}$ ..... 3$^{2}$ A) Greater than. B) Less than. C) Equal to. D) Don't know. Show Answer Correct Answer: B) Less than. 9. 45$^{56}$/45$^{27}$ A) 45$^{29}$. B) 45$^{83}$. C) 45$^{82}$. D) 45$^{30}$. Show Answer Correct Answer: A) 45$^{29}$. 10. $k^4\cdot m$ A) $67$. B) $67\\frac{1}{2}$. C) $1.4468$. D) $1\\frac{193}{432}$. Show Answer Correct Answer: B) $67\\frac{1}{2}$. 11. Convert this number into scientific notation:0.068 A) 6.9 x 10$^{6}$. B) 6.8 x 10$^{-9}$. C) 6.8 x 10$^{-2}$. D) None of the above. Show Answer Correct Answer: C) 6.8 x 10$^{-2}$. 12. (X $^{h} $) $^{p} $ A) X $^{21} $. B) 8x $^{21} $. C) X $^{10} $. D) 8x $^{10} $. Show Answer Correct Answer: B) 8x $^{21} $. 13. What is the answer? $10^4$ A) 10. B) 40. C) 10000. D) 4. Show Answer Correct Answer: C) 10000. 14. Write each power as a product of the same factor. 3$^{7}$ A) Reversal. B) 7x7x7. C) 3x3x3x3x3x3. D) 3x3x3x3x3x3x3. Show Answer Correct Answer: D) 3x3x3x3x3x3x3. 15. Which is equivalent to 10$^{-1}$? A) 0.001. B) 0.01. C) 0.1. D) 1. Show Answer Correct Answer: C) 0.1. 16. (4x$^{5}$y$^{2}$)(6x$^{2}$y$^{3}$) A) 10x$^{10}$y$^{6}$. B) 24x $^{7} $ and $^{5} $. C) 24x $^{10} $ and $^{6} $. D) 10x$^{7}$y$^{5}$. Show Answer Correct Answer: B) 24x $^{7} $ and $^{5} $. 17. What number is 10 times as much as 70? A) 700. B) 7. C) 70. D) 7, 000. Show Answer Correct Answer: A) 700. 18. What does the exponent in a power represent? A) The exponent is the result of the multiplication of the base. B) The exponent shows the total number of bases involved. C) The exponent represents the number of times the base is multiplied by itself. D) The exponent indicates the value of the base. Show Answer Correct Answer: C) The exponent represents the number of times the base is multiplied by itself. 19. The reciprocal of $\left(\frac{2}{5}\right)^{-1}$ A) $\frac{5}{2}$. B) $\frac{2}{5}$. C) $-\frac{2}{5}$. D) $-\frac{5}{2}$. Show Answer Correct Answer: B) $\frac{2}{5}$. 20. Which of the following is in expanded form? A) 5 x 5 x 5. B) 5$^{3}$. C) 125. D) None of the above. Show Answer Correct Answer: A) 5 x 5 x 5. 21. Express each of the following as product of powers of their prime factors:3600 A) 2$^{4}$ x 3$^{2}$ x 5$^{2}$. B) 2$^{5}$ x 3$^{4}$ x 5$^{4}$. C) 5$^{5 }$x 4$^{3}$. D) None of the above. Show Answer Correct Answer: A) 2$^{4}$ x 3$^{2}$ x 5$^{2}$. 22. What is the value of any number raised to zero power? A) 1. B) 0. C) The number itself. D) 10. Show Answer Correct Answer: A) 1. 23. What is the exponential form for the expression? $\left(-2\right)\left(-2\right)\left(-2\right)$ A) $\left(3\right)^{-2}$. B) $\left(-2\right)^3$. C) $\left(-2\right)^2$. D) $-8$. Show Answer Correct Answer: B) $\left(-2\right)^3$. 24. What is the power of a number when squared? A) 13. B) 2. C) 6. D) 3. E) 1. Show Answer Correct Answer: B) 2. 25. Which is equivalent to 4 x 4 x 4 x 4 x 4 A) $^{}$4$^{6}$. B) 5$^{4}$. C) 4$^{4}$. D) 4$^{5}$. Show Answer Correct Answer: D) 4$^{5}$. ← 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