This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Mathematics Chapter 8 Rational Numbers – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Mathematics Chapter 8 Rational Numbers Quiz 28 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A + b = b + a, this is ..... property A) Closure. B) Distributive. C) Associative. D) Commutative. Show Answer Correct Answer: D) Commutative. 2. At noon the temperature was 5$^{2}$/$_{5}$ degrees. By 7 pm the temperature had dropped 7.3 degrees. By midnight, the temperature had gone down another 1.2 degrees. What is the temperature at midnight? A) -3.1 or-3$^{1}$/$_{10}$ degrees. B) -13.9 or-13$^{9}$/$_{10}$ degrees. C) -3.3 or-3$^{3}$/$_{10}$ degrees. D) 0.7 or $^{7}$/$_{10}$ degrees. Show Answer Correct Answer: A) -3.1 or-3$^{1}$/$_{10}$ degrees. 3. $\frac{-3}{4}+3\\frac{1}{2}$ A) $-3\\frac{1}{4}$. B) $3\\frac{1}{4}$. C) $-2\\frac{3}{4}$. D) $2\\frac{3}{4}$. Show Answer Correct Answer: D) $2\\frac{3}{4}$. 4. Horatio climbed to the top of a ladder that is 10 feet high. What is the opposite of Horatio's height on the ladder? A) -10 feet. B) 10 feet. C) 0 feet. D) $\frac{1}{10}$. Show Answer Correct Answer: A) -10 feet. 5. The temperature in a town is 34.1$^\circ$F during the day and-8.6$^\circ$F at night. Find the difference in the temperatures. A) 42.7. B) 25.5. C) 42.7$^\circ$F. D) 25.5$^\circ$F. Show Answer Correct Answer: C) 42.7$^\circ$F. 6. The product of two rational numbers is 15. If one of the numbers is-10, find the other A) 5/2. B) 3/5. C) 3/-2. D) -5/2. Show Answer Correct Answer: C) 3/-2. 7. Additive inverse of 0 is 1: A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 8. Convert 3/4 to a decimal. A) 0.74. B) 0.75. C) 0.73. D) 0.70. Show Answer Correct Answer: B) 0.75. 9. -4.45) A) -14.44025. B) 14.44025. C) 0.01444025. D) -0.01444025. Show Answer Correct Answer: A) -14.44025. 10. Kennedy read for 1/4 of an hour, Claudia read for 1/6 of an hour, and Kai read for 2/8 of an hour. Which girls read an equal amount of time? A) Kennedy and Claudia. B) Kai and Claudia. C) Kennedy and Kai. D) No one read an equal amount of time. Show Answer Correct Answer: C) Kennedy and Kai. 11. Additive inverse of-100 is: A) 101. B) 100. C) 105. D) 104. Show Answer Correct Answer: B) 100. 12. Subtract. Write the fractions in simplest form. $\frac{3}{4}-\frac{9}{4}$ A) $\frac{6}{4}$. B) $-\frac{6}{4}$. C) $-1\frac{2}{4}$. D) $-1\frac{1}{2}$. Show Answer Correct Answer: D) $-1\frac{1}{2}$. 13. Arrange in order from greatest to least:80%, 0.34, $\frac{3}{4}$ A) 80% > $\frac{3}{4}$. B) 0.34 > 80% > $\frac{3}{4}$. C) 80% > 0.34 > $\frac{3}{4}$. D) None of the above. Show Answer Correct Answer: A) 80% > $\frac{3}{4}$. 14. A recipe for cake requires 1/3 cup of milk. Molly wants to make 4/5 of the recipe. How many cups of milk should Molly use to make the cake? A) 4/15. B) 5/12. C) 1/5. D) 6/8. Show Answer Correct Answer: A) 4/15. 15. $_{* }$9 = 1.Which property of rational numbers is used here? A) Commutative Property of Multiplication. B) Associative Property of Multiplication. C) Multiplicative Identity Property. D) Multiplicative Inverse Property. Show Answer Correct Answer: D) Multiplicative Inverse Property. 16. The additive inverse of-6/7 A) 6/7. B) -7/6. C) 7/6. D) 1. Show Answer Correct Answer: A) 6/7. 17. Additive inverse of (-5 / 6) is A) 5/6. B) 6/5. C) 5/11. D) 6/11. Show Answer Correct Answer: A) 5/6. 18. Express 3/5 as a rational number with numerator 150 A) 150/200. B) 150/220. C) 150/250. D) None of the above. Show Answer Correct Answer: C) 150/250. 19. The no. whose reciprocal is the same as the no. itself is A) 1. B) -1. C) None of the above. D) Both 1 &-1. Show Answer Correct Answer: D) Both 1 &-1. 20. Write 'True' or 'False'1 is the only Rational number which is its own RECIPROCAL A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 21. X 2.8 A) 4.48. B) 4.4. C) 448. D) 44.8. Show Answer Correct Answer: A) 4.48. 22. The following rational number lies between-6 and 4 A) 8. B) -3. C) 5. D) 7. Show Answer Correct Answer: B) -3. 23. Subtract. Write the fractions in simplest form. $-3\frac{1}{9}-\left(-2\frac{1}{3}\right)$ A) $-1\frac{1}{9}$. B) $-5\frac{4}{9}$. C) $-\frac{7}{9}$. D) $1\frac{1}{2}$. Show Answer Correct Answer: C) $-\frac{7}{9}$. 24. Find 4 rational numbers between 3 and 4 no answers in mixed fractions A) 31/10, 32/10, 33/10, 34/10. B) 29/10, 37/10, 41/10, 36/10. C) 36/10, 37/10, 39/10, 43/10,. D) 25/10, 27/10 37/10, 29/10. Show Answer Correct Answer: A) 31/10, 32/10, 33/10, 34/10. 25. Rational numbers are closed under division A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. ← PreviousNext →Related QuizzesClass 7 Mathematics Chapter 8 Rational Numbers Quiz 1Class 7 Mathematics Chapter 8 Rational Numbers Quiz 2Class 7 Mathematics Chapter 8 Rational Numbers Quiz 3Class 7 Mathematics Chapter 8 Rational Numbers Quiz 4Class 7 Mathematics Chapter 8 Rational Numbers Quiz 5Class 7 Mathematics Chapter 8 Rational Numbers Quiz 6Class 7 Mathematics Chapter 8 Rational Numbers Quiz 7Class 7 Mathematics Chapter 8 Rational Numbers Quiz 8Class 7 Mathematics Chapter 8 Rational Numbers Quiz 9Class 7 Mathematics Chapter 8 Rational Numbers Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books