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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 833 · 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.Kabir has 15 laddoos and gets 1 laddoo more. How many laddoos does Kabir have now?
  2. 2.There are 4 pink kites and 15 blue kites. How many kites are there in all?
  3. 3.7 + ? = 15
  4. 4.6 + 1 + 1 =
  5. 5.9 + 3 =
  6. 6.13 + 1 =
  7. 7.Zoya has 6 laddoos and gets 11 laddoos more. How many laddoos does Zoya have now?
  8. 8.Priya has 8 kites and gets 5 kites more. How many kites does Priya have now?
  9. 9.There are 8 white balls and 12 red balls. How many balls are there in all?
  10. 10.Aditya has 11 balls and gets 9 balls more. How many balls does Aditya have now?
  11. 11.2 + 5 + 8 =
  12. 12.Aditya has 14 books and gets 5 books more. How many books does Aditya have now?
  13. 13.6 + 8 + 5 =
  14. 14.8 + 2 + 8 =
  15. 15.1 + 5 + 1 =
  16. 16.2 + 6 + 3 =
  17. 17.2 + ? = 12
  18. 18.17 + 1 =
  19. 19.? + 4 = 11
  20. 20.2 + 1 + 1 =
  21. 21.There are 6 pink flowers and 5 red flowers. How many flowers are there in all?
  22. 22.12 + 5 =
  23. 23.6 + 1 + 7 =
  24. 24.Lakshmi has 9 books and gets 5 books more. How many books does Lakshmi have now?
  25. 25.? + 5 = 6
  26. 26.2 + 3 + 4 =
  27. 27.6 + 8 + 1 =
  28. 28.There are 4 yellow flowers and 12 blue flowers. How many flowers are there in all?
  29. 29.2 + 13 =
  30. 30.There are 10 red balls and 9 blue balls. How many balls are there in all?
  31. 31.2 + 4 =
  32. 32.? + 4 = 5
  33. 33.3 + 3 + 3 =
  34. 34.1 + 3 + 16 =
  35. 35.6 + 1 + 4 =
  36. 36.1 + ? = 3
  37. 37.There are 6 green kites and 11 blue kites. How many kites are there in all?
  38. 38.? + 11 = 19
  39. 39.1 + 6 =
  40. 40.4 + 14 =

Answer key

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

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