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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 858 · 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.Meera has 12 pencils and gets 5 pencils more. How many pencils does Meera have now?
  2. 2.4 + 4 + 10 =
  3. 3.14 + 2 =
  4. 4.Zoya has 3 bananas and gets 14 bananas more. How many bananas does Zoya have now?
  5. 5.13 + 7 =
  6. 6.Aarav has 9 crayons and gets 10 crayons more. How many crayons does Aarav have now?
  7. 7.6 + 6 + 1 =
  8. 8.Rohan has 14 balls and gets 2 balls more. How many balls does Rohan have now?
  9. 9.6 + 8 =
  10. 10.Manav has 9 balloons and gets 4 balloons more. How many balloons does Manav have now?
  11. 11.4 + 5 =
  12. 12.7 + 8 =
  13. 13.5 + 8 + 2 =
  14. 14.7 + 3 + 5 =
  15. 15.1 + 1 + 6 =
  16. 16.? + 3 = 14
  17. 17.17 + 1 =
  18. 18.Ananya has 6 shells and gets 10 shells more. How many shells does Ananya have now?
  19. 19.15 + 1 =
  20. 20.Meera has 8 books and gets 8 books more. How many books does Meera have now?
  21. 21.6 + 1 =
  22. 22.Arjun has 5 laddoos and gets 14 laddoos more. How many laddoos does Arjun have now?
  23. 23.There are 4 white flowers and 11 green flowers. How many flowers are there in all?
  24. 24.Sneha has 8 mangoes and gets 11 mangoes more. How many mangoes does Sneha have now?
  25. 25.8 + ? = 9
  26. 26.2 + 4 + 14 =
  27. 27.19 + 1 =
  28. 28.2 + 2 + 14 =
  29. 29.2 + 7 + 6 =
  30. 30.Farhan has 5 books and gets 2 books more. How many books does Farhan have now?
  31. 31.? + 16 = 17
  32. 32.18 + 2 =
  33. 33.Arjun has 9 pencils and gets 2 pencils more. How many pencils does Arjun have now?
  34. 34.Rahul has 14 marbles and gets 5 marbles more. How many marbles does Rahul have now?
  35. 35.6 + ? = 9
  36. 36.? + 1 = 18
  37. 37.6 + 3 + 1 =
  38. 38.1 + ? = 3
  39. 39.Joseph has 5 balloons and gets 6 balloons more. How many balloons does Joseph have now?
  40. 40.3 + 3 + 7 =

Answer key

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

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