47.2
If a digit has a value of 5 or more then it adds 1 to the column to the left when rounding up. If the digit has a value of 4 or less it is discarded completely. So...
47.234 becomes 47.23 to the nearest 100th which then becomes 47.2 to the nearest 10th.
It is 12.4 rounded to the nearest tenth
It is then 20.2 when rounded to the nearest tenth
It is 232.4 when rounded to the nearest tenth
61.52 rounded to nearest tenth = 61.5
10.5
It is 5.2 when rounded to the nearest tenths.
65.6
It is then 52.8 when rounded to the nearest tenth
It is then 56.5 when rounded to the nearest tenth
It is 0.8 when rounded to the nearest tenth
It is 12.4 rounded to the nearest tenth
It is then 20.2 when rounded to the nearest tenth
It is 232.4 when rounded to the nearest tenth
4.4
113.04 rounded to the nearest tenth is 113.0.
346.21 rounded to the nearest tenth is 346.2.
10775.9