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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 157 · 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.Kabir has 14 balloons and gets 6 balloons more. How many balloons does Kabir have now?
  2. 2.7 + 3 =
  3. 3.Lakshmi has 3 balloons and gets 4 balloons more. How many balloons does Lakshmi have now?
  4. 4.6 + 3 + 10 =
  5. 5.4 + 6 + 4 =
  6. 6.5 + ? = 6
  7. 7.16 + 2 =
  8. 8.There are 9 white flowers and 11 blue flowers. How many flowers are there in all?
  9. 9.2 + 4 + 8 =
  10. 10.Meera has 8 balloons and gets 2 balloons more. How many balloons does Meera have now?
  11. 11.7 + 8 =
  12. 12.6 + 9 =
  13. 13.? + 2 = 4
  14. 14.3 + ? = 6
  15. 15.There are 7 pink kites and 2 blue kites. How many kites are there in all?
  16. 16.Kabir has 15 flowers and gets 2 flowers more. How many flowers does Kabir have now?
  17. 17.3 + 3 + 13 =
  18. 18.13 + ? = 19
  19. 19.17 + 2 =
  20. 20.7 + 1 + 6 =
  21. 21.Isha has 5 books and gets 4 books more. How many books does Isha have now?
  22. 22.11 + 3 =
  23. 23.Saanvi has 15 balls and gets 2 balls more. How many balls does Saanvi have now?
  24. 24.Arjun has 8 laddoos and gets 4 laddoos more. How many laddoos does Arjun have now?
  25. 25.Ananya has 13 pencils and gets 5 pencils more. How many pencils does Ananya have now?
  26. 26.There are 7 white crayons and 8 red crayons. How many crayons are there in all?
  27. 27.16 + 3 =
  28. 28.7 + 10 =
  29. 29.2 + ? = 10
  30. 30.Lakshmi has 7 flowers and gets 13 flowers more. How many flowers does Lakshmi have now?
  31. 31.8 + 10 =
  32. 32.Aarav has 5 mangoes and gets 14 mangoes more. How many mangoes does Aarav have now?
  33. 33.1 + 16 =
  34. 34.1 + 8 + 10 =
  35. 35.5 + 6 + 2 =
  36. 36.9 + 9 =
  37. 37.Isha has 2 balloons and gets 17 balloons more. How many balloons does Isha have now?
  38. 38.11 + ? = 20
  39. 39.Zoya has 8 balloons and gets 8 balloons more. How many balloons does Zoya have now?
  40. 40.1 + 19 =

Answer key

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

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