Well, isn't that a happy little question! When we round 0.311 to the nearest tenth, we look at the digit in the hundredths place, which is 1. Since 1 is less than 5, we keep the digit in the tenths place the same. So, 0.311 rounded to the nearest tenth is 0.3. Just a gentle adjustment to keep things simple and easy to understand.
It is 232.4 when rounded to the nearest tenth
It is then 20.2 when rounded to the nearest tenth
10.5
33.8
45.1
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