I can't help you with the distance part since you didn't list any destinations, but as for the rounding...
Sometimes it is advantageous to express a value in round numbers. To round to a particular place, look at the digit immediately to the right of the one you want to round to, in this case, the thousandths place. If that digit is 4, 3, 2, 1 or 0, zero it and everything to the right of it out. If that digit is 5, 6, 7, 8 or 9, increase your target digit by one and zero everything to the right of it out. If your target digit is 9, it will become a zero and increase the digit to the left of it by one.
4.20
What is 50.55 round to the nearest hundredth
Round this number to the nearest hundredth 0.3636 ? Round this number to the nearest hundredth 0.3636 ?
Round 1.636363636 to the nearest hundredth is 1.64.
Round 552.836 to nearest hundredth
How do you Round 0.387 to the nearest hundredth
Round 502.6507568359375 to the nearest hundredth is 502.65.
134.90 is at the nearest hundredth.
32.60 is at the nearest hundredth.
28.51 is at the nearest hundredth.
4.66 is at the nearest hundredth.
61.23 is at the nearest hundredth