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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 410 · 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. 1.3 + 8 + 5 =
  2. 2.6 + 6 + 1 =
  3. 3.13 + 1 =
  4. 4.1 + 7 =
  5. 5.There are 10 yellow beads and 5 pink beads. How many beads are there in all?
  6. 6.There are 5 pink flowers and 6 white flowers. How many flowers are there in all?
  7. 7.Rahul has 9 laddoos and gets 9 laddoos more. How many laddoos does Rahul have now?
  8. 8.12 + 7 =
  9. 9.Farhan has 6 shells and gets 6 shells more. How many shells does Farhan have now?
  10. 10.Saanvi has 2 laddoos and gets 15 laddoos more. How many laddoos does Saanvi have now?
  11. 11.7 + 3 + 7 =
  12. 12.1 + 4 + 12 =
  13. 13.There are 6 blue crayons and 13 red crayons. How many crayons are there in all?
  14. 14.1 + 8 + 4 =
  15. 15.Kavya has 5 books and gets 9 books more. How many books does Kavya have now?
  16. 16.Aarav has 12 balloons and gets 2 balloons more. How many balloons does Aarav have now?
  17. 17.16 + 3 =
  18. 18.Aditya has 6 crayons and gets 3 crayons more. How many crayons does Aditya have now?
  19. 19.There are 5 red kites and 3 green kites. How many kites are there in all?
  20. 20.7 + 3 =
  21. 21.7 + 7 + 2 =
  22. 22.2 + 3 + 4 =
  23. 23.There are 12 blue kites and 4 green kites. How many kites are there in all?
  24. 24.? + 4 = 13
  25. 25.7 + 4 =
  26. 26.There are 8 pink balls and 4 yellow balls. How many balls are there in all?
  27. 27.? + 3 = 4
  28. 28.5 + 7 + 1 =
  29. 29.Isha has 8 crayons and gets 11 crayons more. How many crayons does Isha have now?
  30. 30.There are 2 pink beads and 13 blue beads. How many beads are there in all?
  31. 31.15 + 5 =
  32. 32.Kabir has 6 books and gets 5 books more. How many books does Kabir have now?
  33. 33.There are 2 yellow balloons and 12 red balloons. How many balloons are there in all?
  34. 34.Joseph has 14 balloons and gets 6 balloons more. How many balloons does Joseph have now?
  35. 35.14 + 6 =
  36. 36.3 + ? = 13
  37. 37.Kavya has 10 bananas and gets 7 bananas more. How many bananas does Kavya have now?
  38. 38.17 + 3 =
  39. 39.Saanvi has 10 flowers and gets 6 flowers more. How many flowers does Saanvi have now?
  40. 40.7 + 5 + 7 =

Answer key

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

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