The answer is even number.
The sum of any two or more even numbers is always an even number.
Even numbers are numbers whose ones digit are 0, 2, 4, 6, 8.
Example:
24 + 6 = 30 (The addends are both even numbers. Their sum is also even.)
72 + 24 = 96 (the addends are both even numbers. Their sum is also even.)