300
The nearest hundred of 279 is 300. When determining the nearest hundred, you look at the tens digit of the number in question. Since the tens digit of 279 is 7, which is greater than 5, you round up to the nearest hundred, which is 300.
300
It is 300 when rounded to the nearest hundred
916 rounded to the nearest hundred is 900
5800
0
It is already rounded to the nearest hundred thousandths. Rounded to the nearest thousands would be 87.381.
0
10000
0
678 is rounded nearest hundred is 700