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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 731 · 40 sums
TalentJR

The method (Count on): Start with the bigger number. Count on the smaller number, one finger at a time. For a missing number (8 + ? = 15), count on from 8 up to 15, or take away: 15 − 8.

NameDateTime takenScore ___ / 40
  1. 1.6 + 7 =
  2. 2.There are 9 blue balls and 4 pink balls. How many balls are there in all?
  3. 3.6 + 4 + 4 =
  4. 4.There are 9 red beads and 2 green beads. How many beads are there in all?
  5. 5.There are 12 yellow balloons and 4 red balloons. How many balloons are there in all?
  6. 6.? + 2 = 15
  7. 7.2 + 7 + 6 =
  8. 8.10 + 9 =
  9. 9.? + 4 = 7
  10. 10.? + 5 = 9
  11. 11.12 + 6 =
  12. 12.There are 5 white flowers and 14 pink flowers. How many flowers are there in all?
  13. 13.Aarav has 6 laddoos and gets 13 laddoos more. How many laddoos does Aarav have now?
  14. 14.Kavya has 3 pencils and gets 8 pencils more. How many pencils does Kavya have now?
  15. 15.4 + 2 + 10 =
  16. 16.4 + 14 =
  17. 17.There are 3 white kites and 2 pink kites. How many kites are there in all?
  18. 18.19 + 1 =
  19. 19.1 + 5 + 9 =
  20. 20.3 + 12 =
  21. 21.? + 6 = 8
  22. 22.3 + 17 =
  23. 23.Rohan has 12 laddoos and gets 3 laddoos more. How many laddoos does Rohan have now?
  24. 24.2 + 5 + 2 =
  25. 25.There are 10 red flowers and 4 blue flowers. How many flowers are there in all?
  26. 26.6 + 9 =
  27. 27.11 + 1 =
  28. 28.Saanvi has 13 balls and gets 7 balls more. How many balls does Saanvi have now?
  29. 29.15 + ? = 18
  30. 30.There are 5 red crayons and 5 blue crayons. How many crayons are there in all?
  31. 31.8 + ? = 17
  32. 32.2 + 12 =
  33. 33.7 + 5 + 8 =
  34. 34.? + 9 = 14
  35. 35.There are 6 yellow crayons and 7 green crayons. How many crayons are there in all?
  36. 36.4 + ? = 8
  37. 37.2 + 3 =
  38. 38.6 + 3 =
  39. 39.3 + 2 =
  40. 40.4 + 3 + 1 =

Answer key

  1. 13
  2. 13
  3. 14
  4. 11
  5. 16
  6. 13
  7. 15
  8. 19
  9. 3
  10. 4
  11. 18
  12. 19
  13. 19
  14. 11
  15. 16
  16. 18
  17. 5
  18. 20
  19. 15
  20. 15
  21. 2
  22. 20
  23. 15
  24. 9
  25. 14
  26. 15
  27. 12
  28. 20
  29. 3
  30. 10
  31. 9
  32. 14
  33. 20
  34. 5
  35. 13
  36. 4
  37. 5
  38. 9
  39. 5
  40. 8

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