Worksheet

Addition Within 20

Grade 1 Math Worksheet - Building Confidence

NameDate

Write the answer on the line.

  1. 9 + 5 =

  2. 7 + 4 =

  3. 9 + 3 =

  4. 4 + 9 =

  5. 6 + 5 =

  6. 10 + 4 =

  7. 9 + 2 =

  8. 10 + 2 =

  9. 8 + 5 =

  10. 5 + 7 =

  11. 6 + 8 =

  12. 9 + 4 =

  13. 7 + 7 =

  14. 6 + 6 =

  15. 7 + 6 =

  16. 10 + 3 =

  17. 3 + 8 =

  18. 8 + 4 =

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Addition Within 20

Answer Key - Grade 1 Math Worksheet - Building Confidence

Write the answer on the line.

  1. 9 + 5 = 14

  2. 7 + 4 = 11

  3. 9 + 3 = 12

  4. 4 + 9 = 13

  5. 6 + 5 = 11

  6. 10 + 4 = 14

  7. 9 + 2 = 11

  8. 10 + 2 = 12

  9. 8 + 5 = 13

  10. 5 + 7 = 12

  11. 6 + 8 = 14

  12. 9 + 4 = 13

  13. 7 + 7 = 14

  14. 6 + 6 = 12

  15. 7 + 6 = 13

  16. 10 + 3 = 13

  17. 3 + 8 = 11

  18. 8 + 4 = 12