There are 90 such numbers.
There are 90 palindromic numbers between 100 and 1000
70 and 90
There are 16 numbers
There are infinitely many numbers between 90 and 100. For example, 90.00000000001 90.000000000013 90.000000000014 90.0000000000141 90.0000000000142 and so on and on and on.
There are 89 numbers between 1 and 90, inclusive. This is because when counting the numbers between two endpoints, you subtract the starting number from the ending number and then add 1. So, 90 - 1 + 1 = 90. But since we are looking for the numbers between 1 and 90, we need to subtract 1, resulting in 89 numbers.
There is one prime number between 90 and 100. It is 97.
Two.
90
90.
80
There are three. 97,101,103