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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 24 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.Suki worked out 390 + 370 = 660. What is the right answer?
2.Priya worked out 454 + 372 = 726. What is the right answer?
3.Freya worked out 334 + 277 = 501. What is the right answer?
4.Suki worked out 357 + 474 = 721. What is the right answer?
5.Ama worked out 178 + 473 = 541. What is the right answer?
6.Ama worked out 149 + 388 = 427. What is the right answer?
7.Ravi worked out 352 + 382 = 634. What is the right answer?
8.Priya worked out 280 + 183 = 363. What is the right answer?

LessonPrint · 3.NBT.A.2 · Set 24 · free to copy for classroom use

Answer key — Add Within 1000 — With Regrouping

Set 24. Prints on its own sheet.

  1. 1.760
  2. 2.826
  3. 3.611
  4. 4.831
  5. 5.651
  6. 6.537
  7. 7.734
  8. 8.463

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.