There are 9 numbers that fit the description. 455,456,457,458,459,461,462,453 and 454.
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
10000
0
678 is rounded nearest hundred is 700
0
10900
500