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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 74 · 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. 1.8 + 2 + 6 =
  2. 2.13 + 4 =
  3. 3.There are 12 red crayons and 3 green crayons. How many crayons are there in all?
  4. 4.Rohan has 2 pencils and gets 11 pencils more. How many pencils does Rohan have now?
  5. 5.Ananya has 6 laddoos and gets 12 laddoos more. How many laddoos does Ananya have now?
  6. 6.14 + 4 =
  7. 7.5 + 3 + 6 =
  8. 8.Rohan has 9 kites and gets 11 kites more. How many kites does Rohan have now?
  9. 9.Nisha has 4 balloons and gets 12 balloons more. How many balloons does Nisha have now?
  10. 10.? + 8 = 16
  11. 11.5 + 8 + 4 =
  12. 12.Karan has 12 books and gets 6 books more. How many books does Karan have now?
  13. 13.1 + ? = 3
  14. 14.There are 8 green flowers and 8 blue flowers. How many flowers are there in all?
  15. 15.18 + 1 =
  16. 16.5 + 8 + 5 =
  17. 17.Rohan has 5 balloons and gets 7 balloons more. How many balloons does Rohan have now?
  18. 18.14 + 1 =
  19. 19.7 + 7 + 5 =
  20. 20.15 + 2 =
  21. 21.Pooja has 3 flowers and gets 11 flowers more. How many flowers does Pooja have now?
  22. 22.1 + 5 + 9 =
  23. 23.19 + 1 =
  24. 24.17 + 1 =
  25. 25.There are 6 red beads and 6 green beads. How many beads are there in all?
  26. 26.1 + 1 + 10 =
  27. 27.There are 11 white balloons and 3 yellow balloons. How many balloons are there in all?
  28. 28.? + 3 = 10
  29. 29.2 + 4 + 11 =
  30. 30.? + 14 = 17
  31. 31.There are 3 white kites and 11 red kites. How many kites are there in all?
  32. 32.? + 3 = 6
  33. 33.Joseph has 14 kites and gets 5 kites more. How many kites does Joseph have now?
  34. 34.Isha has 2 laddoos and gets 16 laddoos more. How many laddoos does Isha have now?
  35. 35.Lakshmi has 12 pencils and gets 2 pencils more. How many pencils does Lakshmi have now?
  36. 36.11 + 3 =
  37. 37.There are 10 pink kites and 8 yellow kites. How many kites are there in all?
  38. 38.There are 5 blue balloons and 10 white balloons. How many balloons are there in all?
  39. 39.There are 7 blue crayons and 13 red crayons. How many crayons are there in all?
  40. 40.15 + 4 =

Answer key

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

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