True
True
False.
false. it is always even
When you add them, you always get an even number; when you multiply them, the result is always odd.
True.
No, it is not true: it depends on what your numbers are.
It is true that the sum of 2 even numbers is never odd
True
The sum of three whole odd numbers will always be odd keeping in mind that zero is neither even nor odd and that 'null' is not a number.
True
True
The GCF is, yes.
Yes.
False.
Neither. The property of odd or even applies only to integers (whole numbers).
Square numbers have an odd number of factors.