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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 821 · 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. 1.9 + 1 =
  2. 2.Diya has 6 kites and gets 4 kites more. How many kites does Diya have now?
  3. 3.Kabir has 11 flowers and gets 7 flowers more. How many flowers does Kabir have now?
  4. 4.Riya has 3 pencils and gets 16 pencils more. How many pencils does Riya have now?
  5. 5.5 + 12 =
  6. 6.There are 2 green flowers and 5 pink flowers. How many flowers are there in all?
  7. 7.Kabir has 3 books and gets 2 books more. How many books does Kabir have now?
  8. 8.9 + 6 =
  9. 9.6 + ? = 7
  10. 10.17 + 1 =
  11. 11.Sneha has 10 balls and gets 2 balls more. How many balls does Sneha have now?
  12. 12.There are 11 pink crayons and 2 blue crayons. How many crayons are there in all?
  13. 13.There are 6 white kites and 12 yellow kites. How many kites are there in all?
  14. 14.1 + 18 =
  15. 15.9 + 7 =
  16. 16.Ananya has 14 flowers and gets 3 flowers more. How many flowers does Ananya have now?
  17. 17.6 + 5 + 7 =
  18. 18.There are 11 white balloons and 6 red balloons. How many balloons are there in all?
  19. 19.3 + 6 =
  20. 20.14 + 2 =
  21. 21.6 + 1 + 8 =
  22. 22.There are 3 red crayons and 4 green crayons. How many crayons are there in all?
  23. 23.4 + 2 + 13 =
  24. 24.16 + 1 =
  25. 25.There are 7 pink kites and 8 green kites. How many kites are there in all?
  26. 26.1 + ? = 6
  27. 27.19 + 1 =
  28. 28.Saanvi has 3 bananas and gets 9 bananas more. How many bananas does Saanvi have now?
  29. 29.2 + 17 =
  30. 30.8 + 1 =
  31. 31.There are 3 red balloons and 5 white balloons. How many balloons are there in all?
  32. 32.3 + 5 + 9 =
  33. 33.8 + 7 =
  34. 34.There are 3 red flowers and 5 blue flowers. How many flowers are there in all?
  35. 35.Arjun has 5 pencils and gets 2 pencils more. How many pencils does Arjun have now?
  36. 36.Pooja has 3 flowers and gets 16 flowers more. How many flowers does Pooja have now?
  37. 37.6 + 5 + 1 =
  38. 38.There are 5 blue crayons and 12 red crayons. How many crayons are there in all?
  39. 39.3 + 1 + 11 =
  40. 40.13 + 7 =

Answer key

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

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