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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 934 · 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. 1.2 + ? = 8
  2. 2.There are 11 yellow flowers and 3 blue flowers. How many flowers are there in all?
  3. 3.1 + 1 + 4 =
  4. 4.Nisha has 15 shells and gets 5 shells more. How many shells does Nisha have now?
  5. 5.3 + 4 + 7 =
  6. 6.1 + ? = 3
  7. 7.There are 11 blue crayons and 5 green crayons. How many crayons are there in all?
  8. 8.There are 3 yellow balloons and 11 white balloons. How many balloons are there in all?
  9. 9.3 + ? = 15
  10. 10.1 + 5 =
  11. 11.1 + 10 =
  12. 12.2 + ? = 10
  13. 13.Ananya has 15 crayons and gets 4 crayons more. How many crayons does Ananya have now?
  14. 14.Meera has 6 shells and gets 12 shells more. How many shells does Meera have now?
  15. 15.1 + 2 + 4 =
  16. 16.There are 10 red kites and 3 yellow kites. How many kites are there in all?
  17. 17.Karan has 5 kites and gets 13 kites more. How many kites does Karan have now?
  18. 18.There are 10 pink kites and 2 red kites. How many kites are there in all?
  19. 19.Sneha has 9 flowers and gets 10 flowers more. How many flowers does Sneha have now?
  20. 20.11 + 3 =
  21. 21.2 + 7 =
  22. 22.14 + 1 =
  23. 23.5 + 6 + 5 =
  24. 24.Joseph has 5 marbles and gets 1 marble more. How many marbles does Joseph have now?
  25. 25.8 + 5 =
  26. 26.7 + 8 + 5 =
  27. 27.? + 1 = 4
  28. 28.1 + ? = 14
  29. 29.13 + 7 =
  30. 30.There are 9 blue crayons and 3 yellow crayons. How many crayons are there in all?
  31. 31.Saanvi has 15 kites and gets 2 kites more. How many kites does Saanvi have now?
  32. 32.1 + ? = 4
  33. 33.1 + ? = 8
  34. 34.7 + 4 =
  35. 35.There are 3 pink flowers and 14 blue flowers. How many flowers are there in all?
  36. 36.Kabir has 14 mangoes and gets 2 mangoes more. How many mangoes does Kabir have now?
  37. 37.6 + 2 + 5 =
  38. 38.4 + 4 + 11 =
  39. 39.1 + 6 + 6 =
  40. 40.1 + 13 =

Answer key

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

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