Tap every property rational numbers have under addition

Exercise and reference answers

Questions

1. Items

   1. Text

      Closed

      Matches the category

      Yes

   2. Text

      Commutative

      Matches the category

      Yes

   3. Text

      Associative

      Matches the category

      Yes

   4. Text

      Has 0 as identity

      Matches the category

      Yes

   5. Text

      Has 1 as identity

      Matches the category

      No

   Category

   True of rational numbers under ADDITION

Explanation