600
600
638 rounded to the nearest twenty-five 650.
637.892 rounded to the nearest whole number is 638
The number 638 is nearest to the hundred 600. When rounding to the nearest hundred, you look at the tens digit (which is 3 in this case). Since 3 is less than 5, you round down to 600.
640
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
600
0