623 is rounded to the nearest unit.
It is 300 when rounded to the nearest hundred
916 rounded to the nearest hundred is 900
87.3809 is already rounded to the nearest hundred thousandths. 87.3809 rounded to the nearest thousand is 87.381.
Rounded to the nearest integer or whole number it is 624
0
0
0
678 is rounded nearest hundred is 700
300
800
3200