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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 750 · 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.Joseph has 6 books and gets 7 books more. How many books does Joseph have now?
  2. 2.9 + 9 =
  3. 3.There are 2 yellow kites and 3 blue kites. How many kites are there in all?
  4. 4.4 + 6 + 5 =
  5. 5.5 + 12 =
  6. 6.5 + 6 + 2 =
  7. 7.16 + 3 =
  8. 8.6 + 7 + 5 =
  9. 9.There are 3 yellow balloons and 10 white balloons. How many balloons are there in all?
  10. 10.1 + ? = 8
  11. 11.There are 12 white kites and 5 green kites. How many kites are there in all?
  12. 12.5 + 13 =
  13. 13.4 + 2 =
  14. 14.There are 5 red balls and 10 white balls. How many balls are there in all?
  15. 15.Rahul has 2 books and gets 17 books more. How many books does Rahul have now?
  16. 16.2 + 6 + 3 =
  17. 17.2 + 1 + 15 =
  18. 18.14 + 5 =
  19. 19.6 + 8 =
  20. 20.15 + 1 =
  21. 21.Saanvi has 9 mangoes and gets 2 mangoes more. How many mangoes does Saanvi have now?
  22. 22.11 + ? = 13
  23. 23.7 + 6 + 3 =
  24. 24.Arjun has 12 flowers and gets 3 flowers more. How many flowers does Arjun have now?
  25. 25.There are 8 white balloons and 7 yellow balloons. How many balloons are there in all?
  26. 26.3 + ? = 4
  27. 27.Tara has 3 balloons and gets 8 balloons more. How many balloons does Tara have now?
  28. 28.Tara has 12 laddoos and gets 7 laddoos more. How many laddoos does Tara have now?
  29. 29.Nisha has 2 pencils and gets 2 pencils more. How many pencils does Nisha have now?
  30. 30.3 + 3 + 1 =
  31. 31.Isha has 11 marbles and gets 5 marbles more. How many marbles does Isha have now?
  32. 32.2 + ? = 10
  33. 33.? + 11 = 14
  34. 34.15 + ? = 19
  35. 35.Aditya has 4 crayons and gets 7 crayons more. How many crayons does Aditya have now?
  36. 36.16 + 2 =
  37. 37.Farhan has 6 kites and gets 7 kites more. How many kites does Farhan have now?
  38. 38.Arjun has 7 balls and gets 6 balls more. How many balls does Arjun have now?
  39. 39.3 + 3 + 11 =
  40. 40.There are 5 yellow crayons and 7 white crayons. How many crayons are there in all?

Answer key

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

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