192 rounded to the nearest hundred is 200. When rounding a number to the nearest hundred, you look at the digit in the tens place. If it is 5 or greater, you round up; if it is less than 5, you round down. In this case, 192 has a tens digit of 9, so we round up to the nearest hundred, which is 200.
190
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
0
678 is rounded nearest hundred is 700
10900
500
3300