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Addition within 20 Worksheets

Name: Date: Addition within 20 Solve each problem. 1. 10 + 1 =2. 9 + 11 =3. 15 + 2 =4. 10 + 8 =5. 7 + 13 =6. 8 + 6 =7. 3 + 7 =8. 5 + 3 =9. 8 + 1 =10. 7 + 10 =11. 6 + 3 =12. 2 + 8 =13. 11 + 5 =14. 12 + 2 =15. 12 + 4 =16. 12 + 8 =17. 5 + 12 =18. 4 + 6 =19. 7 + 4 =20. 4 + 12 = 1120171820141089179101614162017101116 funchildren.com 1st Grade · Sheet #1