Skills Covered

How to Use These Worksheets

This pack includes three worksheets covering expanded and standard form for 3-digit numbers. The first worksheet asks students to write numbers in expanded form, the second converts expanded form to standard form, and the third mixes both directions.

In the Classroom

Use these worksheets during place value units or as review practice. The progression from one direction to mixed practice helps students build confidence. Great for 2nd and 3rd grade math centers.

At Home

Help your child break apart numbers they see in everyday life — house numbers, prices, page numbers — into hundreds, tens, and ones. Then use these worksheets to practice writing the expanded form.

Tips for Success

• Start with the expanded form worksheet before moving to standard form
• Use base-ten blocks alongside for hands-on support
• Remind students that the hundreds digit tells how many groups of one hundred
• Save the mixed practice sheet for when both directions feel comfortable

Common Core Standards Alignment

These worksheets support the following Common Core State Standards for Mathematics:

• 2.NBT.A.1 — Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones
• 2.NBT.A.3 — Read and write numbers to 1000 using base-ten numerals, number names, and expanded form