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Add and Subtract Within 1000 is a free printable Grade 3 maths worksheet on mixing the two operations, aligned to Common Core standard 3.NBT.A.2. It prints 12 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 11 of 25 · the same problems every time you open this link.

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

Add and Subtract Within 1000

3.NBT.A.2

NameDate

Work out each answer.

1.725 + 548 =
2.149 + 527 =
3.494 + 959 =
4.186 + 838 =
5.758 + 703 =
6.728 + 846 =
7.771 − 326 =
8.812 − 759 =
9.847 − 258 =
10.821 − 149 =
11.721 − 205 =
12.980 − 849 =

LessonPrint · 3.NBT.A.2 · Set 11 · free to copy for classroom use

Answer key — Add and Subtract Within 1000

Set 11. Prints on its own sheet.

  1. 1.1273
  2. 2.676
  3. 3.1453
  4. 4.1024
  5. 5.1461
  6. 6.1574
  7. 7.445
  8. 8.53
  9. 9.589
  10. 10.672
  11. 11.516
  12. 12.131

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