65.100 is greater than 65.010.
When comparing two decimal numbers, we start by comparing the digits to the left of the decimal point. In this case, both numbers have the same digit in the tens place (6), so we need to compare the digits in the ones place.
In 65.100, the digit in the ones place is 0, which is greater than the digit 1 in 65.010. Therefore, 65.100 is greater than 65.010.