hello I need help with this question, I get it as it is.
I am just wondering if there is a typo or there is a catch or something with the question?
I tried finding a 4-digits square number, and I have 77^2 which gives 5929, so the missing number is 9 ?
The answer key also says 9.
But that means there is a typo where the 2nd last number should be 2 instead of 1?
Anyone can direct me with this?