When rounding 931 to the nearest hundred, you look at the digit in the tens place, which is 3. Since 3 is less than 5, you keep the hundreds digit the same and change all digits to the right to zero. Therefore, rounding 931 to the nearest hundred gives you 900.
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