4 is already an exact number of tenths, so there's no other tenth that's closer to it.
44.0
Rounded down to the nearest tenth, 13.4256 is approximately equal to 13.4, or 13 and four tenths.
3.7
0.4 is equal to 4/10, or four tenths. No further rounding is required - it is already rounded down to the nearest tenth.
12 and 6/10
4.6
3.9356 to the nearest tenth is 3.9
A tenth of 0.44 is 0.044. The nearest tenth to it is zero. 0.44 rounded to the nearest tenth is 0.4 .
It is already to the nearest tenth as 3.2
It is 1.0 to the nearest tenth and not 0.9
Rounding 74283.529 to the nearest tenth will give you 74283.6.
The nearest tenth is 0.5