678.4
678.365 rounded to the nearest tenth is 678.4. The digit to the right of the tenths is the hundredths. When rounding anything less than five you round down. When rounding anything five or more you round up. The hundredths digit is 6, which is more than 5, so you round up to 0, making the answer 678.4.
678.4
It is 5.2 when rounded to the nearest tenths.
It is then 56.5 when rounded to the nearest tenth
It is 0.8 when rounded to the nearest tenth
10775.9
2.7
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 232.4 when rounded to the nearest tenth
It is 12.4 rounded to the nearest tenth
It is 0.8 when rounded to the nearest tenth
It is then 20.2 when rounded to the nearest tenth
4.4
346.21 rounded to the nearest tenth is 346.2.
113.04 rounded to the nearest tenth is 113.0.
0.6