Depending on how you look at it, there are either 99 or 100 whole numbers up to 100. If you mean up to and including 100, then the answer is 100 whole numbers, if not, then the answer is 99 whole numbers.
98
99
51
With whole numbers, there are five ways.
There are 300 whole numbers between 100 and 400, inclusive. To find this, you subtract 100 from 400 to get the total range of numbers (400 - 100 = 300). Then, since we're considering whole numbers, we add 1 to include the endpoints (400 and 100). Therefore, there are 300 whole numbers between 100 and 400.
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All numbers from 1 to 100 which are whole numbers are integers
98
100
20
None.
Twenty of them including 80 and 100
99
101
90
51
With whole numbers, there are five ways.