It is rounded to 700.
700
Oh honey, 674 rounded off to the nearest ten is 670. Just drop those last two pesky digits like they're hot and you're good to go. Keep it simple, ain't nobody got time for that extra math drama.
0
It is 300 when rounded to the nearest hundred
916 rounded to the nearest hundred is 900
5800
0
It is already rounded to the nearest hundred thousandths. Rounded to the nearest thousands would be 87.381.
0
0.674
10000