No. The smallest 2 digit number is 10 the smallest 3 digit number is 100 - so the question is whether (100-10) is a perfect square? No - 90 is not a perfect square. 8x8 is 64 and 9x9 is 91, not 90.
100
16
16
1352
11 is the smallest 2 digit prime and 11^2=121
The unit digit of the square of 81 will be 1.
Nothing in this universe: 16,25,36,49,64 & 81 are the only 2-digit squares.
The number/digit 2.
-99 is the smallest two digit number.-99 is the smallest two digit number.-99 is the smallest two digit number.-99 is the smallest two digit number.
121
That would be 26 . . . its square is 676.There are two smaller palindromic squares . . . 121 and 484 ... but they're the squares of11 and 22 respectively, which are palindromic, so they flunk the question's specifications.