Question 216272
Which place value? Tenth? Hundredth? 

Well any way you do it, you just look to the number after the given place. So if you need to round to the next whole number, anything 5 or higher you round up and 4 and lower round down.
Whole:  516.1 = 516     Since the tenth is 4 or lower round down.
Tenth: 516.10=516.1 Since the hundredth is less than 4 it rounds down
Hundredth: 516.109=516.11 Since the thousandth is 5 or higher it rounds up the hundredth
Thousandth:516.1094=516.109 Since the last digit is 4 or less it rounds down