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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 286 · 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 3 red kites and 16 white kites. How many kites are there in all?
  2. 2.Aarav has 3 books and gets 2 books more. How many books does Aarav have now?
  3. 3.? + 5 = 9
  4. 4.Riya has 9 laddoos and gets 7 laddoos more. How many laddoos does Riya have now?
  5. 5.7 + ? = 15
  6. 6.3 + 7 + 2 =
  7. 7.14 + 1 =
  8. 8.? + 2 = 17
  9. 9.6 + 7 + 3 =
  10. 10.There are 10 pink kites and 6 blue kites. How many kites are there in all?
  11. 11.5 + 10 =
  12. 12.? + 4 = 17
  13. 13.Rohan has 11 pencils and gets 8 pencils more. How many pencils does Rohan have now?
  14. 14.19 + 1 =
  15. 15.Nisha has 4 balls and gets 7 balls more. How many balls does Nisha have now?
  16. 16.Zoya has 13 mangoes and gets 6 mangoes more. How many mangoes does Zoya have now?
  17. 17.14 + 4 =
  18. 18.Rohan has 7 shells and gets 13 shells more. How many shells does Rohan have now?
  19. 19.2 + 1 + 7 =
  20. 20.? + 11 = 16
  21. 21.11 + 4 =
  22. 22.There are 7 white balls and 8 green balls. How many balls are there in all?
  23. 23.? + 5 = 7
  24. 24.Karan has 15 marbles and gets 3 marbles more. How many marbles does Karan have now?
  25. 25.9 + ? = 17
  26. 26.4 + 1 =
  27. 27.3 + 1 + 14 =
  28. 28.16 + 2 =
  29. 29.8 + 5 + 1 =
  30. 30.Aarav has 13 crayons and gets 4 crayons more. How many crayons does Aarav have now?
  31. 31.There are 4 red kites and 7 white kites. How many kites are there in all?
  32. 32.3 + 6 + 5 =
  33. 33.? + 9 = 18
  34. 34.Aarav has 11 mangoes and gets 7 mangoes more. How many mangoes does Aarav have now?
  35. 35.There are 8 blue kites and 6 green kites. How many kites are there in all?
  36. 36.? + 6 = 15
  37. 37.? + 5 = 18
  38. 38.There are 9 white kites and 4 red kites. How many kites are there in all?
  39. 39.17 + 1 =
  40. 40.14 + 5 =

Answer key

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

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