Worksheet

Add Three Numbers

Grade 1 Math Worksheet

NameDate

Write the sum on the line.

  1. 8 + 3 + 1 =

  2. 9 + 1 + 3 =

  3. 1 + 9 + 1 =

  4. 1 + 8 + 6 =

  5. 8 + 2 + 2 =

  6. 5 + 4 + 3 =

  7. 2 + 5 + 5 =

  8. 7 + 5 + 3 =

  9. 5 + 5 + 1 =

  10. 3 + 7 + 4 =

  11. 5 + 3 + 6 =

  12. 8 + 5 + 2 =

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Add Three Numbers

Answer Key - Grade 1 Math Worksheet

Write the sum on the line.

  1. 8 + 3 + 1 = 12

  2. 9 + 1 + 3 = 13

  3. 1 + 9 + 1 = 11

  4. 1 + 8 + 6 = 15

  5. 8 + 2 + 2 = 12

  6. 5 + 4 + 3 = 12

  7. 2 + 5 + 5 = 12

  8. 7 + 5 + 3 = 15

  9. 5 + 5 + 1 = 11

  10. 3 + 7 + 4 = 14

  11. 5 + 3 + 6 = 14

  12. 8 + 5 + 2 = 15