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
0
It is already rounded to the nearest hundred thousandths. Rounded to the nearest thousands would be 87.381.
0
0
678 is rounded nearest hundred is 700
0
10900
500