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Addition within 20 — Worksheet 3

Name: Date: Addition within 20 Solve each problem. 1. 12 + 1 =2. 8 + 1 =3. 12 + 4 =4. 8 + 2 =5. 5 + 9 =6. 4 + 2 =7. 11 + 5 =8. 13 + 7 =9. 6 + 10 =10. 9 + 10 =11. 9 + 1 =12. 14 + 2 =13. 15 + 4 =14. 7 + 10 =15. 4 + 6 =16. 2 + 9 =17. 14 + 4 =18. 11 + 8 =19. 10 + 6 =20. 2 + 7 = 1391610146162016191016191710111819169 funchildren.com 1st Grade · Sheet #3