10 and a half, being between the whole numbers 10 and 11, can't be a whole number itself.
Not sure about 5 holes, but 5 whole ones and a half is 11/2
11 is a whole number. No change is required.
Then the whole number is negative.
2
No, it is not.
Six and a half is an improper fraction. It is not a whole number and cannot be made into one.
11/20 is more than a half so the answer is 224.
That equals 408.5. It's not a whole number.
We're hoping that nobody ever taught you that every fraction has a "whole number" connected to it somehow. It doesn't. Let's put it as simply as we can: If you have one half of a pizza, then how many whole pizzas is that ? And if you have one half of a dollar, then how many whole dollars is that ? One half is just what it says . . . one half. There is no whole number for it. You'd need to get another half from somewhere and put them together just to make the smallest whole number there is.
Two and a half would be called a mixed number, because it has a whole number and a fraction.
No, it is not.