# 3. Expanded Forms

**Expanded Forms Worksheet** consolidates place value understanding. Students read and write expanded and standard forms of numbers within 1000. For example, the number 323 can be written as 300 + 20 + 3. Visualizing such breaking down of numbers into hundreds, tens and ones is an important aid in multi digit arithmetic (addition, subtraction, multiplication and division) as it helps in breaking down the task at hand into smaller problems with known answers.

### Common Core Alignment

**2.NBT.3**Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.

**2.NBT.1**Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases: