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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 163 · 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. 1.14 + 6 =
  2. 2.Manav has 8 shells and gets 10 shells more. How many shells does Manav have now?
  3. 3.9 + 5 =
  4. 4.There are 3 green crayons and 11 red crayons. How many crayons are there in all?
  5. 5.4 + ? = 14
  6. 6.There are 11 red beads and 7 green beads. How many beads are there in all?
  7. 7.6 + 1 + 1 =
  8. 8.8 + 3 + 2 =
  9. 9.Karan has 3 kites and gets 17 kites more. How many kites does Karan have now?
  10. 10.17 + ? = 19
  11. 11.6 + 3 + 3 =
  12. 12.6 + ? = 12
  13. 13.7 + 7 + 3 =
  14. 14.11 + 5 =
  15. 15.1 + 5 =
  16. 16.Farhan has 3 kites and gets 14 kites more. How many kites does Farhan have now?
  17. 17.There are 9 yellow kites and 3 white kites. How many kites are there in all?
  18. 18.? + 7 = 12
  19. 19.? + 5 = 12
  20. 20.5 + ? = 6
  21. 21.There are 12 blue kites and 3 pink kites. How many kites are there in all?
  22. 22.16 + 2 =
  23. 23.4 + 1 + 11 =
  24. 24.6 + 6 + 5 =
  25. 25.There are 8 blue kites and 6 red kites. How many kites are there in all?
  26. 26.6 + 4 + 2 =
  27. 27.6 + 9 =
  28. 28.5 + 9 =
  29. 29.10 + 9 =
  30. 30.14 + 5 =
  31. 31.There are 2 pink crayons and 4 yellow crayons. How many crayons are there in all?
  32. 32.? + 8 = 10
  33. 33.4 + 2 + 7 =
  34. 34.7 + 3 + 6 =
  35. 35.Joseph has 5 balloons and gets 4 balloons more. How many balloons does Joseph have now?
  36. 36.5 + 3 + 11 =
  37. 37.There are 12 white balloons and 6 pink balloons. How many balloons are there in all?
  38. 38.1 + 8 + 3 =
  39. 39.There are 9 green crayons and 10 pink crayons. How many crayons are there in all?
  40. 40.2 + 7 + 3 =

Answer key

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

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