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

One paper per student

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

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.Luis worked out 435 + 474 = 809. What is the right answer?

2.Suki worked out 117 + 269 = 376. What is the right answer?

3.Mei worked out 284 + 246 = 420. What is the right answer?

4.Elsie worked out 209 + 214 = 413. What is the right answer?

5.Omar worked out 345 + 189 = 424. What is the right answer?

6.Ama worked out 271 + 169 = 330. What is the right answer?

7.Mei worked out 256 + 108 = 354. What is the right answer?

8.Ravi worked out 293 + 446 = 639. What is the right answer?

LessonPrint · 3.NBT.A.2 · Set 25 · free to copy for classroom use

Answer key — Add Within 1000 — With Regrouping

Set 25. Prints on its own sheet.

1.909
2.386
3.530
4.423
5.534
6.440
7.364
8.739

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.