It is closer to 500.
is 548 closer to 500 or 600
They are: 529 and 576
600 because if it is over 550 it should round up
23x23=529 and 24x24=576
500
500
600
6,537 rounds to 6,500 because 537 is closer to 500 than it is to 600.
642 is closer to 600
500
600
500