No need to repeat questions. Wait for yours to be answered.
To the nearest hundredth is 3 digits to the left of the decimal point.
We look at the digit to the right of that number.
If that number is 5 or higher, we round up. Else, round down.
5 is our third digit to the left of the decimal point. 5 is right beside that, therefore we round up.
555.555 rounded to the nearest hundredth is 600.