How big do the numbers get?

Four-digit plus four-digit, so sums up to about 20,000. Every problem carries in at least one column.

Is this the same algorithm as in earlier grades?

Yes. Nothing new is introduced; the practice is keeping the same steps accurate across more columns.

4th grade addition with regrouping

4th grade addition with regrouping worksheets

Fourth graders add four-digit numbers with a carry in at least one column, and often two or three. The point is fluency with the standard algorithm on numbers big enough that place value has to be tracked, not guessed.

Free printable PDF worksheet, aligned to Common Core 4.NBT.B.4.

Each print is a different sheet with its own answer key. You don't need to sign up.

The kind of problems you'll get

Solve each problem.

1559 + 5894 =
Answer: 7453
1681 + 2566 =
Answer: 4247
4865 + 7251 =
Answer: 12,116

Every print pulls a fresh set of problems at this level, so a make-up test or a second sibling never gets the same sheet.

What's on a 4th grade sheet

The sample sheet above has 9 problems. Its answers run from 3505 to 16,681. On the 3rd grade sample they run from 558 to 972. The 3rd grade sample has 10. This sheet is aligned to 4.NBT.B.4. The 3rd grade sheet is aligned to 3.NBT.A.2.

Addition with regrouping. Solve each problem. 9 problems per page.

Every version prints on US Letter or A4, with its answer key after the problems.

How to teach this

Speed comes from rhythm: ones, tens, hundreds, thousands, each column the same move. Check answers by estimating first (5,000 + 3,000 is about 8,000), so a misplaced carry that gives 71,000 gets caught. Ask your child to circle every carry mark after finishing as a self-check.

Watch for: Kids write the whole 15 under the ones column. Only the 5 stays; the 1 moves up as a ten. Kids forget the carried 1 when the next column also adds up neatly. Touch the carry before adding the column.

Common questions about 4th grade addition with regrouping

How big do the numbers get?: Four-digit plus four-digit, so sums up to about 20,000. Every problem carries in at least one column.
Is this the same algorithm as in earlier grades?: Yes. Nothing new is introduced; the practice is keeping the same steps accurate across more columns.

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Aligned to Common Core 4.NBT.B.4. Reviewed by the One more sheet team. Content version 241, updated September 2026.

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