"Roused" is not a mathematical term. 248 ROUNDED to the nearest hundred is 200.
200
247.68 years rounded to the nearest whole number is 248
250
250
250
It is 300 when rounded to the nearest hundred
916 rounded to the nearest hundred is 900
5800
0
657 rounded to the nearest ten is 660. 657 rounded to the nearest hundred is 700.
It is already rounded to the nearest hundred thousandths. Rounded to the nearest thousands would be 87.381.