As 572 is only 28 less than 600 but 72 more than 500 it is obviously nearest to 600.
4198 to the nearest 100 = 4200
That is 4800
100
100
100
100
853 rounded to the nearest 100: 900. 10853 rounded to the nearest 100: 10900.
599 to the nearest 100 is 600.
6,287 to the nearest 100 is 6,300.
2500 is already at the nearest 100.
204 to the nearest 100 is 200
187 to the nearest 100 = 200