The number is already rounded to a greater extent than that!
450.0
1.50 rounded to nearest 10th is 1.5.
34.35 rounded to the nearest 10th is 34.4
It is already rounded to the nearest ten as 450
450
37.5552 rounded to the nearest 10th = 37.6
As is. It is already rounded to the nearest tens place.
You do nothing. 450 is already rounded to the nearest ten.
450
19.99 rounded to the nearest 10th would be 20.0.
450
450
8 is already rounded to the nearest 10th. Rounded to the nearest 10 is 10.