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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 888 · 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.? + 3 = 4
  2. 2.Ishaan has 15 flowers and gets 4 flowers more. How many flowers does Ishaan have now?
  3. 3.There are 9 green beads and 3 blue beads. How many beads are there in all?
  4. 4.Aditya has 9 crayons and gets 3 crayons more. How many crayons does Aditya have now?
  5. 5.There are 3 red beads and 16 pink beads. How many beads are there in all?
  6. 6.Saanvi has 6 crayons and gets 14 crayons more. How many crayons does Saanvi have now?
  7. 7.2 + 15 =
  8. 8.8 + 6 + 2 =
  9. 9.1 + 1 =
  10. 10.16 + 4 =
  11. 11.Ananya has 8 pencils and gets 7 pencils more. How many pencils does Ananya have now?
  12. 12.2 + 11 =
  13. 13.13 + 1 =
  14. 14.15 + 2 =
  15. 15.8 + 3 + 7 =
  16. 16.There are 6 pink beads and 3 white beads. How many beads are there in all?
  17. 17.There are 9 pink flowers and 5 green flowers. How many flowers are there in all?
  18. 18.? + 14 = 16
  19. 19.There are 4 green flowers and 12 red flowers. How many flowers are there in all?
  20. 20.19 + 1 =
  21. 21.There are 3 blue balloons and 2 yellow balloons. How many balloons are there in all?
  22. 22.Ananya has 8 books and gets 6 books more. How many books does Ananya have now?
  23. 23.10 + 4 =
  24. 24.There are 7 yellow flowers and 5 pink flowers. How many flowers are there in all?
  25. 25.13 + ? = 16
  26. 26.There are 4 pink balloons and 9 blue balloons. How many balloons are there in all?
  27. 27.1 + 17 =
  28. 28.2 + 8 =
  29. 29.13 + 6 =
  30. 30.5 + 4 + 10 =
  31. 31.17 + 2 =
  32. 32.1 + ? = 6
  33. 33.Aditya has 15 pencils and gets 2 pencils more. How many pencils does Aditya have now?
  34. 34.There are 12 yellow crayons and 7 pink crayons. How many crayons are there in all?
  35. 35.There are 8 red balloons and 2 blue balloons. How many balloons are there in all?
  36. 36.There are 6 red balls and 13 white balls. How many balls are there in all?
  37. 37.6 + 6 + 1 =
  38. 38.7 + 4 + 4 =
  39. 39.There are 9 blue balls and 7 white balls. How many balls are there in all?
  40. 40.8 + 7 + 1 =

Answer key

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

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