1001 - 1991, etc = 10, x (2,3,4,5,6,7,8,9) 8 = 80
there are 10 palindromic numbers between 9000 and 10000 9009,9119,9229,9339,9449,9559,9669,9779,9889,9999!!!
There are 90 palindromic numbers.
No.
9
90
There are 900000 of them.
11
11
1 to 1000. Pilandromic 108
6,1,8
There are 11520 of them.
No.