Rational numbers Quiz Question with Answer


21. Which of the following is the identity element?

  1. 1
  2. -1
  3. Zero

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

  1. 1
  2. -1
  3. zero

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

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

24. Zero (0) is

  1. the identity for addition of the rational number
  2. the identity for subtraction of the rational number
  3. the identity for multiplication of the rational number
  4. the identity for division of the rational number

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