400
The next digit to the right of 4 is which is less than 5, so retain 4.
It is 400
400.
It is 300 when rounded to the nearest hundred
916 rounded to the nearest hundred is 900
It is already rounded to the nearest hundred thousandths. Rounded to the nearest thousands would be 87.381.
0
0
0
678 is rounded nearest hundred is 700
300
409381900
8900