Subtraction Within 20

Grade 1 Math Worksheet - Challenge Me

NameDate

Write the answer on the line.

  1. 15 - 3 =

  2. 17 - 4 =

  3. 18 - 5 =

  4. 16 - 3 =

  5. 20 - 6 =

  6. 17 - 8 =

  7. 17 - 2 =

  8. 19 - 3 =

  9. 15 - 2 =

  10. 19 - 2 =

  11. 20 - 3 =

  12. 19 - 6 =

  13. 18 - 3 =

  14. 15 - 4 =

  15. 20 - 9 =

  16. 16 - 8 =

  17. 16 - 4 =

  18. 18 - 6 =

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Subtraction Within 20

Answer Key - Grade 1 Math Worksheet - Challenge Me

Write the answer on the line.

  1. 15 - 3 = 12

  2. 17 - 4 = 13

  3. 18 - 5 = 13

  4. 16 - 3 = 13

  5. 20 - 6 = 14

  6. 17 - 8 = 9

  7. 17 - 2 = 15

  8. 19 - 3 = 16

  9. 15 - 2 = 13

  10. 19 - 2 = 17

  11. 20 - 3 = 17

  12. 19 - 6 = 13

  13. 18 - 3 = 15

  14. 15 - 4 = 11

  15. 20 - 9 = 11

  16. 16 - 8 = 8

  17. 16 - 4 = 12

  18. 18 - 6 = 12