90 of them.
There are nine two-digit palindromes: 11, 22, 33, 44, 55, 66, 77, 88 and 99.
48 palindromes.
Forty palindromes.
99 palindromes.
189 palindromes.
There are nine two-digit palindromes: 11, 22, 33, 44, 55, 66, 77, 88 and 99.
81
48 palindromes.
Forty palindromes.
99 palindromes.
40 palindromes.
189 palindromes.
198 palindromes.
There are 90 four-digit palindromes
There are 900 6-digit palindromes.
There are 90 four-digit palindromes
99 palindromes.