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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 439 · 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.Ishaan has 6 balloons and gets 7 balloons more. How many balloons does Ishaan have now?
  2. 2.Ananya has 8 balls and gets 2 balls more. How many balls does Ananya have now?
  3. 3.8 + 10 =
  4. 4.There are 8 green flowers and 3 red flowers. How many flowers are there in all?
  5. 5.6 + ? = 11
  6. 6.? + 2 = 10
  7. 7.1 + 8 + 3 =
  8. 8.9 + ? = 15
  9. 9.4 + ? = 7
  10. 10.There are 11 yellow crayons and 9 blue crayons. How many crayons are there in all?
  11. 11.8 + 7 + 3 =
  12. 12.There are 6 white flowers and 10 blue flowers. How many flowers are there in all?
  13. 13.14 + 3 =
  14. 14.Aarav has 3 kites and gets 13 kites more. How many kites does Aarav have now?
  15. 15.1 + ? = 20
  16. 16.Pooja has 12 marbles and gets 8 marbles more. How many marbles does Pooja have now?
  17. 17.There are 12 pink kites and 3 green kites. How many kites are there in all?
  18. 18.Joseph has 5 shells and gets 1 shell more. How many shells does Joseph have now?
  19. 19.There are 5 yellow crayons and 4 green crayons. How many crayons are there in all?
  20. 20.10 + 5 =
  21. 21.There are 2 yellow flowers and 6 green flowers. How many flowers are there in all?
  22. 22.Zoya has 5 laddoos and gets 13 laddoos more. How many laddoos does Zoya have now?
  23. 23.? + 10 = 12
  24. 24.3 + 7 + 7 =
  25. 25.8 + ? = 9
  26. 26.12 + 8 =
  27. 27.7 + 7 + 3 =
  28. 28.There are 10 red balloons and 2 pink balloons. How many balloons are there in all?
  29. 29.18 + 1 =
  30. 30.8 + 3 =
  31. 31.5 + 2 + 9 =
  32. 32.9 + 6 =
  33. 33.13 + 1 =
  34. 34.1 + 3 + 2 =
  35. 35.Nisha has 8 laddoos and gets 3 laddoos more. How many laddoos does Nisha have now?
  36. 36.4 + 3 + 3 =
  37. 37.5 + ? = 14
  38. 38.Farhan has 14 mangoes and gets 5 mangoes more. How many mangoes does Farhan have now?
  39. 39.? + 2 = 4
  40. 40.There are 4 green flowers and 3 blue flowers. How many flowers are there in all?

Answer key

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

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