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4th Grade Multi-Digit Addition Worksheet

Add multi-digit numbers (up to five digits) with regrouping, using the standard algorithm.

  • Homework
  • Review
  • Test Prep
  • Tutoring

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Worksheet details

Grade
4th Grade
Subject
Math
Skill
Addition
Topic
multi-digit addition with regrouping
Difficulty
Standard
Time
15 minutes
Pages
2 (incl. answer key)
Format
Printable PDF (US Letter)
Answer key
Included
Best for
homework, review, test prep, tutoring

What This Worksheet Practices

Students will add multi-digit numbers (to five digits) using the standard algorithm with regrouping.

  • Lining up place values
  • Carrying across multiple columns
  • Adding large numbers accurately

Worksheet Preview

Preview of Multi-Digit Addition Worksheet

Adding the big numbers

Multi-digit addition is the same standard algorithm students learned with three-digit numbers — just with more columns and possibly several carries in a row. The make-or-break habit is lining up the digits by place value so the ones, tens, hundreds, and thousands stay in their columns.

How to use it

Have students align by place value and add right to left, carrying as they go. Estimating first (round each number) catches big errors — 3,452 + 2,879 should be near 6,000. Builds on 3-digit addition.

👩‍🏫 Teacher note

Alignment is everything with large numbers. Have students estimate first (round each addend) to check that the answer is reasonable.

🏠 Parent note

Line up the digits by place value and add from the right, carrying when a column is 10 or more.

Common Mistakes to Watch For

  • Misaligning place-value columns
  • Forgetting to carry across several columns

Answer Key

Each answer shows the sum.

⬇ Download Answer Key (PDF)

Frequently Asked Questions

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Does it come with an answer key?

Yes — a complete answer key is included.

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