What's going on with these elevators? They've all gone out of service and are stuck between the floors. To fix each one and let the passengers out safely, you'll use a vertical number line and rounding to figure out the closest access door. Can you do it? Thanks a lot!

Here's a quick guide to rounding. First, find the place value you need to round to. Then look at the digit to the right. If it's 5 or more, round up. If it's 4 or less, round down. Study the example carefully, then get these elevators fixed! Hurry, some of the passengers are getting worried!