Three of these are wrong. Find the one that holds.

Exercise and reference answers

Questions

1. Question

   Three of these statements about identities are false.

   Choices

   1. Item

      0 is the additive identity

      Correct

      Yes

   2. Explanation

      Adding 1 changes the number.

      Item

      1 is the additive identity

   3. Explanation

      Multiplying by 0 gives 0, not the original.

      Item

      0 is the multiplicative identity

   4. Explanation

      It is 1, which leaves any number unchanged.

      Item

      There is no multiplicative identity

Explanation