570
572.0
It is: 600
It can't be rounded any further, so it is 570.
600
853 rounded to the nearest 100: 900. 10853 rounded to the nearest 100: 10900.
570 is the nearest ten. 600 is the nearest hundred.
100
100
0
555 rounded to the nearest 100 is 600.
97 rounded to the nearest hundred is 100. 97 rounded to the nearest ten is 100