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Add a Multiple of Ten is a free printable Grade 1 maths worksheet on adding whole tens, aligned to Common Core standard 1.NBT.C.4. It prints 14 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 22 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 a Multiple of Ten

1.NBT.C.4

NameDate

Work out each answer.

1.18 + 40 =
2.69 + 90 =
3.40 + 60 =
4.28 + 20 =
5.44 + 10 =
6.73 + 90 =
7.32 + 70 =
8.43 + 70 =
9.79 + 60 =
10.14 + 10 =
11.64 + 80 =
12.62 + 20 =
13.77 + 10 =
14.76 + 50 =

LessonPrint · 1.NBT.C.4 · Set 22 · free to copy for classroom use

Answer key — Add a Multiple of Ten

Set 22. Prints on its own sheet.

  1. 1.58
  2. 2.159
  3. 3.100
  4. 4.48
  5. 5.54
  6. 6.163
  7. 7.102
  8. 8.113
  9. 9.139
  10. 10.24
  11. 11.144
  12. 12.82
  13. 13.87
  14. 14.126

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