0
There are nine two-digit palindromes: 11, 22, 33, 44, 55, 66, 77, 88 and 99.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
How many positive 3-digit palindromes are there?
90 of them.
How many 4-digit palindromes are there?
There are 90 four-digit palindromes
How many four digit palindromes are there?
There is 90 four digit palindromes.
How many four digit palindromes are perfect squares?
There are no four-digit perfect squares that are palindromes.
How many 3-digit odd palindromes are divisible by 5?
There are 10 3-digit odd palindromes that are divisible by five.
How many positive four-digit integer palindromes have 12 as the sum of the digits of the munber?
81
How many palindromes have 6 digits?
There are 900 6-digit palindromes.
How many 5 digit palindromes are there?
900 This explains it. A positive integer is a palindrome if it reads the same forward and backwards such as 1287821 and 4554. Determine the number of 5-digit positive integers which are NOT palindromes. We start by counting the total number of 5 digit positive integers. The first digit is between 1 and 9, so we have 9 choices. Each of the other 4 digits can be anything at all (10 choices for each). This gives us 9(10)4 = 90000 five-digit positive integers. Now we need to count the number of 5 digit palindromes. Again, we have 9 choices for the first digit and 10 choices for each of the next two. The tens and units digits however are fixed by our choices so far. Therefore, there are only 900 five-digit palindromes. Therefore, the total number of five-digit positive integers which are not palindromes is 90000-900 = 89100.
How many 5-digit palindromes are multiples of 9?
-4
How many 3 digit palindromes are there that add up to ten?
Five of them.
How many 5 digit palindromes equal the sum of 18?
35.
How many ten digit palindromes are there?
90000. With 10 digit palindromes, the last 5 digits are the same as the first 5 digits in reverse, eg 12345 54321. So it comes down to how many 5 digit numbers are there? They are the numbers "10000" to "99999", a total of 99999 - 10000 + 1 = 90000.
How many palindromes are there between 900 - 1900?
-1000
How many palindromes are there between 1 to 1000 inclusive?
109, if you don't count all the single digit numbers as palidromes.
How many positive four digit numbers have 7 as their second digit and 8 as their last digit?
90
How many three digit numbers exist in which the last digit is the same as the last digit of that number squared?
300
How many positive two digit numbers are there?
90
