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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 386 · 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.Nisha has 3 pencils and gets 16 pencils more. How many pencils does Nisha have now?
  2. 2.14 + 5 =
  3. 3.18 + 2 =
  4. 4.Arjun has 5 mangoes and gets 15 mangoes more. How many mangoes does Arjun have now?
  5. 5.8 + 4 + 3 =
  6. 6.Rohan has 3 balls and gets 6 balls more. How many balls does Rohan have now?
  7. 7.? + 4 = 10
  8. 8.4 + 16 =
  9. 9.Aditya has 15 mangoes and gets 4 mangoes more. How many mangoes does Aditya have now?
  10. 10.Lakshmi has 14 laddoos and gets 3 laddoos more. How many laddoos does Lakshmi have now?
  11. 11.7 + 4 + 9 =
  12. 12.16 + 2 =
  13. 13.There are 6 green crayons and 10 yellow crayons. How many crayons are there in all?
  14. 14.8 + ? = 10
  15. 15.There are 5 pink kites and 2 red kites. How many kites are there in all?
  16. 16.6 + 4 + 2 =
  17. 17.There are 11 blue beads and 9 red beads. How many beads are there in all?
  18. 18.Sneha has 6 crayons and gets 14 crayons more. How many crayons does Sneha have now?
  19. 19.? + 1 = 10
  20. 20.Lakshmi has 3 pencils and gets 15 pencils more. How many pencils does Lakshmi have now?
  21. 21.Karan has 5 bananas and gets 4 bananas more. How many bananas does Karan have now?
  22. 22.4 + 8 =
  23. 23.Tara has 5 books and gets 6 books more. How many books does Tara have now?
  24. 24.4 + 13 =
  25. 25.1 + ? = 4
  26. 26.19 + 1 =
  27. 27.6 + 1 + 13 =
  28. 28.1 + 8 + 8 =
  29. 29.Riya has 8 books and gets 1 book more. How many books does Riya have now?
  30. 30.3 + 4 + 13 =
  31. 31.1 + ? = 8
  32. 32.3 + 16 =
  33. 33.11 + ? = 19
  34. 34.Ananya has 15 books and gets 1 book more. How many books does Ananya have now?
  35. 35.3 + 11 =
  36. 36.9 + 2 =
  37. 37.8 + 11 =
  38. 38.4 + ? = 10
  39. 39.Isha has 12 mangoes and gets 2 mangoes more. How many mangoes does Isha have now?
  40. 40.13 + 7 =

Answer key

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

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