Answer:
Anything greater than or equal to 5 rounds up and anything less than or equal to 4 rounds down
a) 4,682 rounds up to 5,000 because 6 > 5 so you round up
b) 123,361 rounds down to 123,000 because 3 < 4 so you round down
c) 56,500 rounds up to 57,000 because 5 = 5 so you round up
