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1st Grade Addition Worksheet Generator
Create a printable 1st grade addition worksheet for ages 6–7 — 20 fresh problems (0–12 and 0–12 (answers ≤ 20)) every time you click, with a separate answer-key page. Aligned to Common Core 1.OA.C.6 — add within 20.
Worksheet generator
1st Grade Addition
1.OA.C.6 — add within 20
Name: ________________Date: __________Score: ____ / 20
- 1.1 + 10 =
- 2.0 + 5 =
- 3.9 + 3 =
- 4.9 + 1 =
- 5.9 + 5 =
- 6.9 + 6 =
- 7.4 + 7 =
- 8.2 + 0 =
- 9.10 + 6 =
- 10.10 + 4 =
- 11.6 + 1 =
- 12.5 + 9 =
- 13.11 + 0 =
- 14.11 + 1 =
- 15.11 + 4 =
- 16.1 + 4 =
- 17.6 + 0 =
- 18.5 + 10 =
- 19.3 + 4 =
- 20.11 + 2 =
Answer key — 1st Grade Addition
- 1. 1 + 10 = 11
- 2. 0 + 5 = 5
- 3. 9 + 3 = 12
- 4. 9 + 1 = 10
- 5. 9 + 5 = 14
- 6. 9 + 6 = 15
- 7. 4 + 7 = 11
- 8. 2 + 0 = 2
- 9. 10 + 6 = 16
- 10. 10 + 4 = 14
- 11. 6 + 1 = 7
- 12. 5 + 9 = 14
- 13. 11 + 0 = 11
- 14. 11 + 1 = 12
- 15. 11 + 4 = 15
- 16. 1 + 4 = 5
- 17. 6 + 0 = 6
- 18. 5 + 10 = 15
- 19. 3 + 4 = 7
- 20. 11 + 2 = 13
Sample problems
1 + 10 = 110 + 5 = 59 + 3 = 129 + 1 = 10
How to use it in class
- Click New worksheet for a different set — ideal for daily fluency practice or differentiated copies.
- Print worksheet prints only the sheet; the answer key goes on its own page (untick to leave it out).
- Time students on repeated sheets to track fluency gains week by week.
Standards alignment
Number ranges follow the Common Core grade-level expectations (K: add/subtract within 10; Grade 1: within 20; Grade 2: within 100; Grade 3: within 1,000 and multiplication facts to 10 × 10; Grade 4: multi-digit; Grade 5: decimals to hundredths and fractions with unlike denominators; Grades 6–8: fraction division, ratios, integers and linear equations).
1st Grade worksheets
| Worksheet | Number range | Standard |
|---|---|---|
| Addition | 0–12 and 0–12 (answers ≤ 20) | 1.OA.C.6 — add within 20 |
| Subtraction | 5–20 and 0–12 | 1.OA.C.6 — subtract within 20 |
Frequently asked questions
Are the worksheets free to print?
Yes — unlimited, free and with no sign-up. Use them in class, for homework or tutoring.
Is there an answer key?
Yes. Every worksheet prints with an answer key on a separate page; untick “Print answer key” to leave it out.
Do I get different problems each time?
Yes. Each click on “New worksheet” builds 20 new problems within the grade-level range, with no duplicates on a sheet.
What does 1st grade addition cover?
1.OA.C.6 — add within 20. This sheet uses 0–12 and 0–12 (answers ≤ 20).
Can I use it on a tablet?
Yes — or print to PDF from the print dialog to share digitally.