If the numbers in the tens and units equal less than 50, then you round down. If they are 50 or above, then you round down. So 312 rounds down to 300.
300
300
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312 rounded to the nearest 100 (hundreds place) is 300.
It is 300 when rounded to the nearest hundred
Rounded to the nearest hundred it is: 32,800
916 rounded to the nearest hundred is 900
670 rounded to the nearest hundred is 700. 670 rounded to the nearest hundred is 1000.
5800
0
657 rounded to the nearest ten is 660. 657 rounded to the nearest hundred is 700.
It is already rounded to the nearest hundred thousandths. Rounded to the nearest thousands would be 87.381.
300
0
10000