21. Which of the following is not true?

- rational number are closed under addition
- rational number are closed under subtraction
- rational number are closed under multiplication
- rational number are closed under division

22. Which of the following is the Multiplicative identity for rational numbers?

- 1
- -1
- zero

23. Which of the following rational numbers is in standard form?

- 20/30
- 10/4
- 1/2
- 1/-3

24. Zero (0) is

- the identity for addition of the rational number
- the identity for subtraction of the rational number
- the identity for multiplication of the rational number
- the identity for division of the rational number

MCQ Multiple Choice Questions and Answers on Rational numbers

Rational numbers Trivia Questions and Answers PDF

Rational numbers Question and Answer

USA - United States of America Canada United Kingdom Australia New Zealand South America Brazil Portugal Netherland South Africa Ethiopia Zambia Singapore Malaysia India China UAE - Saudi Arabia Qatar Oman Kuwait Bahrain Dubai Israil England Scotland Norway Ireland Denmark France Spain Poland and many more....