The answer would be 372600 reason being because you want to round to the nearest hundred. Basically, when rounding you want to check to see if the number crosses that halfway mark. In this case that mark would be at 372550. See how the number you've given me crosses that mark? Exactly. This basically applies to whenever you're rounding. Say you needed to round to the nearest tens you would look at the digit before the digit in the tens place (4) and see if it has crossed the halfway mark (which in this case would be 5). Since it doesn't you wouldn't round and if you absolutely had to you would round downwards.