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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 114 · 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. 1.1 + 5 + 1 =
  2. 2.Rohan has 14 bananas and gets 4 bananas more. How many bananas does Rohan have now?
  3. 3.There are 10 pink crayons and 8 red crayons. How many crayons are there in all?
  4. 4.2 + ? = 10
  5. 5.There are 6 blue balloons and 5 red balloons. How many balloons are there in all?
  6. 6.7 + 2 + 2 =
  7. 7.? + 1 = 12
  8. 8.11 + 8 =
  9. 9.? + 9 = 14
  10. 10.1 + 9 =
  11. 11.There are 6 white flowers and 10 pink flowers. How many flowers are there in all?
  12. 12.There are 4 red flowers and 9 white flowers. How many flowers are there in all?
  13. 13.There are 6 pink kites and 10 white kites. How many kites are there in all?
  14. 14.6 + 2 + 5 =
  15. 15.Aditya has 13 books and gets 4 books more. How many books does Aditya have now?
  16. 16.5 + 1 + 14 =
  17. 17.19 + 1 =
  18. 18.There are 3 red flowers and 5 yellow flowers. How many flowers are there in all?
  19. 19.Aarav has 12 pencils and gets 3 pencils more. How many pencils does Aarav have now?
  20. 20.There are 10 blue balloons and 10 red balloons. How many balloons are there in all?
  21. 21.6 + 7 + 1 =
  22. 22.Meera has 10 balloons and gets 5 balloons more. How many balloons does Meera have now?
  23. 23.8 + ? = 9
  24. 24.14 + 4 =
  25. 25.8 + 4 + 2 =
  26. 26.6 + 9 =
  27. 27.1 + 17 =
  28. 28.Rohan has 2 mangoes and gets 18 mangoes more. How many mangoes does Rohan have now?
  29. 29.4 + 8 + 1 =
  30. 30.There are 4 red balls and 6 green balls. How many balls are there in all?
  31. 31.There are 6 red balloons and 5 blue balloons. How many balloons are there in all?
  32. 32.Ishaan has 7 laddoos and gets 5 laddoos more. How many laddoos does Ishaan have now?
  33. 33.6 + 1 + 9 =
  34. 34.2 + 2 + 5 =
  35. 35.? + 4 = 13
  36. 36.7 + 2 + 3 =
  37. 37.Ishaan has 9 bananas and gets 3 bananas more. How many bananas does Ishaan have now?
  38. 38.? + 3 = 9
  39. 39.3 + ? = 7
  40. 40.5 + 5 + 1 =

Answer key

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

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