1387216 rounded to the tenth place is 1387220 (notice the last two numbers).
77 would be rounded up to 80 if you were asking for the tens place. Don't confuse tens with tenths. 77 rounded to the nearest tenth place is 77.
285.0
0.1
It is: 18.2
5625 rounded to the nearest tenth is 5,625.0
It is 4.2 when rounded to the nearest tenth
It is already rounded to the tenth place as 0.2
1387216 rounded to the tenth place is 1387220 (notice the last two numbers).
It is 62.1 to the nearest tenth place
It is: 21498.3 rounded to the tenth place
576.0
338.4
By leaving it alone because 5625 is already rounded to a whole number.
9.8
10.0
It is: 0.6