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July 4th 2020 all grades question

 
 
Zhen Youwei的相片
July 4th 2020 all grades question
Zhen Youwei發表於2020年 07月 5日(Sun) 19:45
 


For the July 4th all grades question, it asked for palindromes using only 3 and 0s and under 5 integers. However, I don’t agree with the answer 10, since 0 is also a palindrome, so that  would make the answer 11.

 
Rizzo Jacopo的相片
Re: July 4th 2020 all grades question
Rizzo Jacopo發表於2020年 07月 25日(Sat) 18:21
 
The problem specifically asks for positive palindromes.