🔢Math Standard
Multi-Digit Addition Worksheet
Add multi-digit numbers (up to five digits) with regrouping, using the standard algorithm.
4th Grade 15 min
✓ Answer key
4th Grade · Math
4th Grade Addition Worksheets
By 4th grade, addition is about carrying bigger numbers accurately and choosing smart strategies. These free printable 4th grade addition worksheets take students from multi-digit addition with regrouping to real-world word problems and missing-addend puzzles. Every worksheet includes a clear answer key, and each set offers easier and harder paths so you can differentiate for the whole class, small groups, homework, or fast finishers.
Reviewed by ClassReady Editorial Team Last updated August 2026
Before this skill
- Addition facts to 20
- Regrouping in two-digit addition
- Place value to the thousands
Common mistakes to watch for
- Forgetting to carry the ten when a column totals 10 or more
- Adding digits out of place-value alignment
- Dropping a zero when the addend has one
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Frequently Asked Questions
What addition skills do 4th graders practice?
Fourth graders add multi-digit numbers with regrouping (up to six digits), solve multi-step addition word problems, find missing addends, and apply mental-math strategies like adding from the left and using friendly numbers.
Are these addition worksheets free and printable?
Yes. Every worksheet is a free, printable PDF with an answer key, and no sign-up is required.
How should I use these for differentiation?
Each skill has easy, standard, and challenge variants. Start students at the level where they can work independently, then move them up as accuracy improves.