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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 563 · 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.Ananya has 9 pencils and gets 11 pencils more. How many pencils does Ananya have now?
  2. 2.3 + ? = 4
  3. 3.8 + 8 + 3 =
  4. 4.7 + 3 + 1 =
  5. 5.2 + 8 + 6 =
  6. 6.7 + 6 =
  7. 7.Kabir has 13 balloons and gets 5 balloons more. How many balloons does Kabir have now?
  8. 8.6 + 3 =
  9. 9.There are 3 yellow balls and 5 blue balls. How many balls are there in all?
  10. 10.Arjun has 15 balloons and gets 4 balloons more. How many balloons does Arjun have now?
  11. 11.Farhan has 13 kites and gets 5 kites more. How many kites does Farhan have now?
  12. 12.2 + 6 =
  13. 13.5 + 5 + 1 =
  14. 14.Pooja has 13 books and gets 1 book more. How many books does Pooja have now?
  15. 15.Saanvi has 8 shells and gets 6 shells more. How many shells does Saanvi have now?
  16. 16.4 + 5 + 6 =
  17. 17.Aarav has 5 balloons and gets 14 balloons more. How many balloons does Aarav have now?
  18. 18.2 + 10 =
  19. 19.Pooja has 2 pencils and gets 13 pencils more. How many pencils does Pooja have now?
  20. 20.Ishaan has 3 balls and gets 14 balls more. How many balls does Ishaan have now?
  21. 21.1 + 3 =
  22. 22.3 + 12 =
  23. 23.Riya has 14 laddoos and gets 4 laddoos more. How many laddoos does Riya have now?
  24. 24.6 + ? = 18
  25. 25.6 + 2 + 7 =
  26. 26.7 + 13 =
  27. 27.There are 12 green balloons and 4 white balloons. How many balloons are there in all?
  28. 28.There are 8 red crayons and 11 white crayons. How many crayons are there in all?
  29. 29.There are 9 yellow flowers and 10 green flowers. How many flowers are there in all?
  30. 30.4 + 2 + 4 =
  31. 31.There are 3 yellow balls and 17 pink balls. How many balls are there in all?
  32. 32.13 + 7 =
  33. 33.9 + ? = 13
  34. 34.Zoya has 15 pencils and gets 1 pencil more. How many pencils does Zoya have now?
  35. 35.? + 3 = 7
  36. 36.? + 4 = 8
  37. 37.5 + 8 + 6 =
  38. 38.6 + 11 =
  39. 39.? + 2 = 3
  40. 40.? + 7 = 8

Answer key

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

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