There is a decimal point missing from the question. I guess it is after the zero:
0.5454545... to the nearest tenth is 0.5
If it is before the zero:
0.05454545... to the nearest tenth is 0.1
It is 232.4 when rounded to the nearest tenth
It is then 20.2 when rounded to the nearest tenth
61.52 rounded to nearest tenth = 61.5
3934.9 is rounded to the nearest tenth.
1.4
It is 232.4 when rounded to the nearest tenth
It is then 20.2 when rounded to the nearest tenth
It is 0.8 when rounded to the nearest tenth
It is then 56.5 when rounded to the nearest tenth
It is then 52.8 when rounded to the nearest tenth
4.4
54.4
2.7
28.6
346.21 rounded to the nearest tenth is 346.2.
10775.9
61.52 rounded to nearest tenth = 61.5