1. This document discusses place value and rounding numbers. It explains that in the number 5,624: thousands place is 5, hundreds is 6, tens is 2, and units is 4. 2. When writing numbers with thousands, there should always be 3 digits after the thousands place. For example, 5,624. 3. When writing numbers with millions, there should always be 6 digits after the millions place. For example, 5,000,000. The document then provides examples of rounding 874 to the nearest 10 (rounds down to 870) and nearest 100 (rounds up to 900), explaining the rules for rounding down or up based on the digit in the tens or hundreds