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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 775 · 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.There are 5 yellow crayons and 14 blue crayons. How many crayons are there in all?
  2. 2.Priya has 13 pencils and gets 2 pencils more. How many pencils does Priya have now?
  3. 3.6 + 6 + 3 =
  4. 4.3 + 7 + 7 =
  5. 5.16 + 3 =
  6. 6.There are 8 pink crayons and 4 green crayons. How many crayons are there in all?
  7. 7.6 + 4 + 5 =
  8. 8.7 + 2 + 3 =
  9. 9.? + 5 = 12
  10. 10.8 + 4 =
  11. 11.11 + 1 =
  12. 12.Farhan has 5 laddoos and gets 15 laddoos more. How many laddoos does Farhan have now?
  13. 13.? + 7 = 10
  14. 14.There are 12 green kites and 4 yellow kites. How many kites are there in all?
  15. 15.2 + 3 + 9 =
  16. 16.There are 12 red flowers and 6 yellow flowers. How many flowers are there in all?
  17. 17.6 + 6 =
  18. 18.13 + 3 =
  19. 19.There are 11 green flowers and 5 white flowers. How many flowers are there in all?
  20. 20.14 + 6 =
  21. 21.? + 7 = 9
  22. 22.15 + 5 =
  23. 23.7 + 3 + 2 =
  24. 24.1 + 2 =
  25. 25.6 + 9 =
  26. 26.15 + ? = 16
  27. 27.4 + 15 =
  28. 28.3 + 3 + 2 =
  29. 29.7 + 8 + 3 =
  30. 30.6 + 3 =
  31. 31.5 + 10 =
  32. 32.8 + 7 + 1 =
  33. 33.16 + ? = 19
  34. 34.Rahul has 4 balloons and gets 3 balloons more. How many balloons does Rahul have now?
  35. 35.9 + 1 =
  36. 36.? + 2 = 7
  37. 37.Joseph has 15 marbles and gets 4 marbles more. How many marbles does Joseph have now?
  38. 38.19 + 1 =
  39. 39.Kabir has 8 mangoes and gets 7 mangoes more. How many mangoes does Kabir have now?
  40. 40.There are 2 blue balloons and 4 green balloons. How many balloons are there in all?

Answer key

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

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