Skip to content
LessonPrint

Add Two-Digit Numbers is a free printable Grade 1 maths worksheet on two-digit addition without regrouping, aligned to Common Core standard 1.NBT.C.4. 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 9 of 25 · the same problems every time you open this link.

Next set

One paper per pupil

12345678910111213141516171819202122232425

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

Add Two-Digit Numbers

1.NBT.C.4

NameDate

Work out each answer.

1.13 + 40 =
2.30 + 55 =
3.51 + 22 =
4.30 + 14 =
5.80 + 94 =
6.26 + 82 =
7.47 + 82 =
8.34 + 53 =
9.70 + 94 =
10.55 + 60 =
11.81 + 58 =
12.16 + 60 =

LessonPrint · 1.NBT.C.4 · Set 9 · free to copy for classroom use

Answer key — Add Two-Digit Numbers

Set 9. Prints on its own sheet.

  1. 1.53
  2. 2.85
  3. 3.73
  4. 4.44
  5. 5.174
  6. 6.108
  7. 7.129
  8. 8.87
  9. 9.164
  10. 10.115
  11. 11.139
  12. 12.76

Last reviewed 2026-09-05. Aligned to 1.NBT.C.4 of the Common Core State Standards for mathematics.