46.87 rounded to the nearest tenth = 46.9
The next digit at the right of 8 is 7 which is more than 5, so add one to 8.
If the next digit at the right of 8 is less than 5, retain 8.
It is then 52.8 when rounded to the nearest tenth
It is then 56.5 when rounded to the nearest tenth
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
4.4
10775.9
2.7
54.4
28.6
965.4
2.1