Read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form

What you'll learn

1. Read and write multi-digit whole numbers (up to the millions) in three forms: standard form (base-ten numeral), word form (number names), and expanded form
2. Convert fluently among the three forms — given any one representation, produce the other two
3. Use periods (ones, thousands, millions) and commas to read and write large numbers correctly, reading each period group as a unit
4. Compare two multi-digit whole numbers by examining digits place by place from the leftmost place, and record the result using >, =, or < symbols
5. Explain why a digit's position determines its value and use that reasoning to justify comparisons

Prerequisites

• Recognize that in a multi-digit number, a digit in one place represents ten times what it represents in the place to its right