Expanded Form Worksheets

📅 November 12, 2026⏱ 3 min read📥 Free PDF🎓 Grades 1–4📂 Number Sense
Expanded Form worksheets guide

Writing 352 as 300 + 50 + 2 shows what each digit is worth. This activity converts numbers to expanded form, back to standard form, or both.

📥 Download the free expanded form worksheet (PDF) — or read on to learn how to make your own versions in seconds.

What students practice

Expanded formStandard formPlace valueComposing and decomposing numbers

Example worksheet and answer key

Here is an expanded form worksheet made with the default settings, next to the answer key that the tool creates automatically.

Expanded Form worksheet example
Student worksheet
Expanded Form answer key
Answer key (automatic)
📥 Free printable PDFExpanded Form worksheet + answer key · US Letter · 2 pages
Download free PDF

How to create an expanded form worksheet in 60 seconds

  1. Sign in to OnlineMathWorksheet (or start the free 1-day trial) and open the tool.
  2. In Settings → Worksheet type, choose Expanded Form from the Number Sense group.
  3. Open Problem options and adjust: Number of digits, Direction.
  4. Under Problem layout, pick the number of rows and columns (the default is 8 × 2).
  5. In Header, keep the title “Expanded Form” and the instruction “Write each number in the other form.”, or write your own.
  6. Click New problems for this page until you like the set — every click creates a fresh version.
  7. Use Export to download a PDF with the answer key, or save the pages as PNG or JPG images.

Ready-made settings

Use these as starting points and adjust them to your class:

Three digits, to expandedDigits 3, direction “→ expanded”.
Back to standardDirection “→ standard”.
Big numbersNumber of digits 5 or 6.

Teaching tips

  • Use place-value cards that slide over each other.
  • Watch for zeros — 405 is 400 + 5.
  • Pair with Place Value practice.
💡 Make it a game: in Header, tick 🔐 Secret code riddle and type your own Secret phrase. Students solve every problem to reveal the hidden message.

Make your first expanded form worksheet now

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Frequently asked questions

Do the expanded form worksheets come with an answer key?

Yes. Every worksheet gets a matching answer page automatically. You can include it in the PDF or hide it.

Can I make a different version for each student?

Yes. Click “New problems for this page” to generate new numbers with the same settings — as many times as you like.

Which languages are available?

The worksheet itself can be printed in English, French, Spanish or Arabic, which is handy for bilingual classes.

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