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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 625 · 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 8 pink flowers and 10 blue flowers. How many flowers are there in all?
  2. 2.Isha has 14 shells and gets 3 shells more. How many shells does Isha have now?
  3. 3.Meera has 6 marbles and gets 6 marbles more. How many marbles does Meera have now?
  4. 4.2 + ? = 5
  5. 5.14 + 3 =
  6. 6.15 + ? = 18
  7. 7.5 + ? = 7
  8. 8.4 + 6 =
  9. 9.6 + 4 + 6 =
  10. 10.Rahul has 4 bananas and gets 15 bananas more. How many bananas does Rahul have now?
  11. 11.8 + ? = 9
  12. 12.9 + 1 =
  13. 13.Priya has 12 marbles and gets 4 marbles more. How many marbles does Priya have now?
  14. 14.There are 3 yellow kites and 4 green kites. How many kites are there in all?
  15. 15.2 + 2 + 2 =
  16. 16.3 + ? = 15
  17. 17.16 + 1 =
  18. 18.7 + 8 + 5 =
  19. 19.14 + 4 =
  20. 20.There are 3 blue balls and 13 white balls. How many balls are there in all?
  21. 21.11 + 3 =
  22. 22.Rohan has 12 books and gets 8 books more. How many books does Rohan have now?
  23. 23.There are 7 white beads and 8 blue beads. How many beads are there in all?
  24. 24.Sneha has 5 mangoes and gets 3 mangoes more. How many mangoes does Sneha have now?
  25. 25.Gurpreet has 7 balls and gets 13 balls more. How many balls does Gurpreet have now?
  26. 26.15 + 3 =
  27. 27.There are 11 yellow flowers and 3 white flowers. How many flowers are there in all?
  28. 28.Diya has 15 balloons and gets 4 balloons more. How many balloons does Diya have now?
  29. 29.Tara has 8 laddoos and gets 12 laddoos more. How many laddoos does Tara have now?
  30. 30.Joseph has 11 pencils and gets 2 pencils more. How many pencils does Joseph have now?
  31. 31.Zoya has 7 books and gets 12 books more. How many books does Zoya have now?
  32. 32.3 + 7 =
  33. 33.3 + ? = 16
  34. 34.4 + 5 + 4 =
  35. 35.4 + ? = 8
  36. 36.There are 3 pink balloons and 11 blue balloons. How many balloons are there in all?
  37. 37.? + 7 = 9
  38. 38.4 + 6 + 10 =
  39. 39.There are 11 yellow balls and 8 pink balls. How many balls are there in all?
  40. 40.15 + 4 =

Answer key

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

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