2006-06-14 04:46:55 · 11 answers · asked by miss.genius 1 in Science & Mathematics ➔ Mathematics
Eleven.
A palindrome is the same forwards and backwards and 11 is 5+6
2006-06-14 04:48:31 · answer #1 · answered by Peter in La Jolla San Diego CA 4 · 0⤊ 0⤋
11
2006-06-14 13:27:08 · answer #2 · answered by jredfearn08 4 · 0⤊ 0⤋
11
2006-06-14 12:18:51 · answer #3 · answered by Anonymous · 0⤊ 0⤋
11
2006-06-14 11:53:50 · answer #4 · answered by Vivek 4 · 0⤊ 0⤋
11
2006-06-14 11:51:38 · answer #5 · answered by irishfreek6694 2 · 0⤊ 0⤋
11
2006-06-14 11:50:09 · answer #6 · answered by sixer_chick3 2 · 0⤊ 0⤋
11
2006-06-14 11:48:58 · answer #7 · answered by Anonymous · 0⤊ 0⤋
2 digit palindromes are 11, 22, 33, 44, 55, 66, 77, 88, and 99
The only 2 digit palindrome that is the sum of 2 single digit numbers is 11
9 + 2 = 11
8 + 3 = 11
7 + 4 = 11
5 + 6 = 11
to get to the others would take at more than just 2 single digits.
2006-06-14 14:23:23 · answer #8 · answered by Sherman81 6 · 0⤊ 0⤋
11 (5+6)
2006-06-14 11:50:40 · answer #9 · answered by Fabe 6 · 0⤊ 0⤋
Let the number be ab in base ten
Let the two single digits be x and y
Then,
10a+b=10b+a=x+y
10a+b=?
9a=9b
a=b
11a=x+y
if a=1 then the number is 11
if a=2 then 22 is not the sum of two digits.
Hence the answer is 11
2006-06-14 11:58:28 · answer #10 · answered by iyiogrenci 6 · 0⤊ 0⤋