118
100
4500 can be rounded only to 4500 to the nearest 100.
It's 100.
99.59 rounded to the nearest whole number is 100
100 doesn't need to be rounded because it is a whole number.
149.999...
0
99.59 rounded to nearest whole number is 100
236
115 already is rounded to the nearest whole number...Rounded to the nearest 10, it is 120.Rounded to the nearest 100, it is 100.
100
800