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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 473 · 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 9 blue crayons and 11 red crayons. How many crayons are there in all?
  2. 2.Saanvi has 5 laddoos and gets 5 laddoos more. How many laddoos does Saanvi have now?
  3. 3.2 + 2 =
  4. 4.4 + 10 =
  5. 5.There are 4 red beads and 6 green beads. How many beads are there in all?
  6. 6.There are 11 pink kites and 9 yellow kites. How many kites are there in all?
  7. 7.2 + ? = 9
  8. 8.There are 10 red balloons and 8 green balloons. How many balloons are there in all?
  9. 9.8 + 9 =
  10. 10.? + 2 = 13
  11. 11.2 + 3 + 14 =
  12. 12.2 + 7 =
  13. 13.2 + 5 + 2 =
  14. 14.4 + 1 =
  15. 15.1 + 5 =
  16. 16.Sneha has 3 balls and gets 5 balls more. How many balls does Sneha have now?
  17. 17.Ishaan has 8 books and gets 3 books more. How many books does Ishaan have now?
  18. 18.Arjun has 4 shells and gets 6 shells more. How many shells does Arjun have now?
  19. 19.2 + ? = 3
  20. 20.Ananya has 11 pencils and gets 9 pencils more. How many pencils does Ananya have now?
  21. 21.9 + 7 =
  22. 22.2 + 4 + 14 =
  23. 23.3 + 6 + 1 =
  24. 24.? + 15 = 17
  25. 25.There are 7 pink flowers and 6 yellow flowers. How many flowers are there in all?
  26. 26.5 + 6 + 8 =
  27. 27.? + 6 = 13
  28. 28.Farhan has 13 mangoes and gets 5 mangoes more. How many mangoes does Farhan have now?
  29. 29.There are 8 red balls and 7 white balls. How many balls are there in all?
  30. 30.There are 10 blue flowers and 4 pink flowers. How many flowers are there in all?
  31. 31.There are 5 green kites and 6 white kites. How many kites are there in all?
  32. 32.15 + 4 =
  33. 33.Rohan has 5 marbles and gets 5 marbles more. How many marbles does Rohan have now?
  34. 34.9 + 11 =
  35. 35.There are 7 yellow flowers and 13 white flowers. How many flowers are there in all?
  36. 36.4 + 6 + 8 =
  37. 37.There are 2 pink balloons and 3 white balloons. How many balloons are there in all?
  38. 38.There are 7 blue crayons and 8 pink crayons. How many crayons are there in all?
  39. 39.There are 9 pink flowers and 5 blue flowers. How many flowers are there in all?
  40. 40.7 + 1 + 3 =

Answer key

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

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