Decimal values are determined on the preceding powers of 10, so when you move from left to right after the decimal point, the place value digits get divided by 10.
So the first decimal value determines the tenths, the second decimal value determines the hundredths and the third decimal value determines the thousands.
The value that lies before the decimal point (to its left) determines the units, also known as ones.
The underlined value represents the tenths.
