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Add Within 1000 — With Regrouping is a free printable Grade 3 math worksheet on catching a carry that was dropped, aligned to Common Core standard 3.NBT.A.2. It prints 8 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 18 of 25 · the same problems every time you open this link.

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One paper per student

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Add Within 1000 — With Regrouping

3.NBT.A.2

NameDate

Find the mistake and write the right answer.

1.Omar worked out 109 + 123 = 222. What is the right answer?
2.Mei worked out 495 + 110 = 505. What is the right answer?
3.Elsie worked out 365 + 347 = 602. What is the right answer?
4.Omar worked out 357 + 183 = 430. What is the right answer?
5.Kofi worked out 366 + 414 = 770. What is the right answer?
6.Priya worked out 273 + 394 = 567. What is the right answer?
7.Jonah worked out 434 + 268 = 692. What is the right answer?
8.Noor worked out 350 + 396 = 646. What is the right answer?

LessonPrint · 3.NBT.A.2 · Set 18 · free to copy for classroom use

Answer key — Add Within 1000 — With Regrouping

Set 18. Prints on its own sheet.

  1. 1.232
  2. 2.605
  3. 3.712
  4. 4.540
  5. 5.780
  6. 6.667
  7. 7.702
  8. 8.746

More practice for 3.NBT.A.2

Add and subtract within 1000 confidently.

Teaching this next? Fluent Addition and Subtraction to 1000 is the 45-minute plan for it, with the misconceptions to expect.

All Grade 3 worksheets

Last reviewed 2026-09-05. Aligned to 3.NBT.A.2 of the Common Core State Standards for Mathematics.