Chapter 1.7
Expanded form up to 999
What You'll Learn
Recognize the place value of digits in numbers up to 999
Break down three-digit numbers into hundreds, tens, and ones
Convert between standard form and expanded form notation
Understand how expanded form shows the value of each digit
What You'll Practice
1
Adding numbers written in expanded form
2
Writing three-digit numbers from expanded notation
3
Converting standard numbers to expanded form
Why This Matters
Expanded form builds your understanding of place value, which is the foundation for all math operations with larger numbers. This skill helps you add, subtract, multiply, and divide accurately by understanding what each digit truly represents.
This Unit Includes
Practice exercises
Skills
Place Value
Expanded Form
Standard Form
Three-Digit Numbers
Number Sense
