It is already rounded to the nearest ten as 450
450
440
8 is already rounded to the nearest 10th. Rounded to the nearest 10 is 10.
360
You do nothing. 450 is already rounded to the nearest ten.
450
It is already rounded to the nearest ten as 450
450 and above to the nearest 10 which is 460
450
450
450
450
450
450
450 is already rounded to the nearest tens place.
As is. It is already rounded to the nearest tens place.