-99
99
99 and -99
4950
The natural numbers between 9 and 100 are 10, 11, 12, ..., up to 99. This includes all whole numbers starting from 10 up to 99. In total, there are 90 natural numbers in this range.
-99
99
99 and -99
33+30+36=99
Do you mean:"What three consecutive numbers add up to 99?" If you do, then the numbers are 32, 33, 34.
4950
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.
79
99
99
99 = 1 x 99, 3 x 33, 9 x 11, 11 x 9, 33 x 3, 99 x 1
97 + 2