Answer:
The identity element for subtraction of whole numbers is the number 0. This is because subtracting 0 from any whole number \( a \) leaves \( a \) unchanged:
\[ a - 0 = a \]
Therefore, 0 serves as the identity element in subtraction operations involving whole numbers.
Answer:
The identity element for subtraction of whole numbers is 0. This means that for any whole number \(a\), \(a - 0 = a\).
