4. Place the numbers in order from least to greatest. \[ 8.84 ; 8.48 ; 8.87 \]

To sort the numbers from least to greatest, compare the digits starting from the left. First, we see that \( 8.48 \) is the smallest because the digits after the decimal are less than those of \( 8.84 \) and \( 8.87 \). Next, \( 8.84 \) comes next, followed by \( 8.87 \), which is the largest. Therefore, the order is \( 8.48 ; 8.84 ; 8.87 \). Want to spice up your number sorting skills? Remember that placing numbers on a number line can visualize which ones are smaller or larger! It’s like hosting a race—everyone's lined up and it's easy to see who crosses the finish line first. When sorting decimals, it’s easy to get confused, especially with similar numbers. A common mistake is to only look at the first digits after the decimal. Always compare the whole number parts first, then each decimal place from left to right! This will save you from mixing up numbers that appear close together.