Skip to content
LessonPrint

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

Next setLesson plan

One paper per student

12345678910111213141516171819202122232425

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.Kofi worked out 374 + 366 = 630. What is the right answer?
2.Aisha worked out 454 + 254 = 608. What is the right answer?
3.Mei worked out 380 + 392 = 672. What is the right answer?
4.Tomas worked out 446 + 114 = 550. What is the right answer?
5.Suki worked out 367 + 183 = 440. What is the right answer?
6.Noor worked out 371 + 351 = 622. What is the right answer?
7.Suki worked out 165 + 235 = 390. What is the right answer?
8.Luis worked out 372 + 389 = 651. What is the right answer?

LessonPrint · 3.NBT.A.2 · Set 21 · free to copy for classroom use

Answer key — Add Within 1000 — With Regrouping

Set 21. Prints on its own sheet.

  1. 1.740
  2. 2.708
  3. 3.772
  4. 4.560
  5. 5.550
  6. 6.722
  7. 7.400
  8. 8.761

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.