2.7 is already at the nearest tenth, so there is no need for any other rounding.
The square root of 27, when rounded to the nearest tenths place, is 5.2
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
27,578,684,000 rounded to the nearest tenth of a billion is 27,600,000,000
26.6667
The square root of 27, when rounded to the nearest tenths place, is 5.2
65.6
It is 5.2 when rounded to the nearest tenths.
It is then 52.8 when rounded to the nearest tenth
It is then 56.5 when 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
It is 232.4 when rounded to the nearest tenth
It is 12.4 rounded to the nearest tenth
4.4