Question

Give two examples each to show integers
are closed under addition and subtraction.​

Answer 1

Answer:

The set of integers is closed under addition, subtraction, and multiplication because when I add, subtract, or multiply any integers, the result is always an integer. The set is not closed under division because 2 + 4 = 0.5, and 0.5 is not an integer.

Answer 2

Answer:

3+2=5 5 is a integer thus integers are closed under addition

3-2=1 1 is a integer thus integers are closed under subtraction