206,250 rounded up to the nearest 100 is 206,300
* * * * *
That is, if you wish to introduce a systematic bias to rounding.
If you blindly and ignorantly abide by the following the rule:
Round down if the next digit is 1,2,3 or 4
Round up if the next digit is 5,6,7,8 or 9
the result is that you will round down less often than you round up. That introduces a systematic rounding bias.
To avoid this, it is recommended rule is
Round down if the next digit is 1,2,3 or 4
Round up if the next digit is 6,7,8 or 9
If the next digit is 5, round to an even digit.
Therefore, 206250 is 206,200.
100
That is 4800
4198 to the nearest 100 = 4200
100
100
100
853 rounded to the nearest 100: 900. 10853 rounded to the nearest 100: 10900.
2500 is already at the nearest 100.
599 to the nearest 100 is 600.
6,287 to the nearest 100 is 6,300.
204 to the nearest 100 is 200
187 to the nearest 100 = 200