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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 61 · 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.? + 6 = 17
  2. 2.1 + ? = 5
  3. 3.There are 3 white balls and 11 red balls. How many balls are there in all?
  4. 4.Priya has 11 books and gets 2 books more. How many books does Priya have now?
  5. 5.Rahul has 4 laddoos and gets 16 laddoos more. How many laddoos does Rahul have now?
  6. 6.2 + 2 + 7 =
  7. 7.3 + 8 =
  8. 8.There are 12 red beads and 2 green beads. How many beads are there in all?
  9. 9.There are 8 red beads and 7 white beads. How many beads are there in all?
  10. 10.9 + ? = 12
  11. 11.? + 15 = 18
  12. 12.There are 12 red beads and 2 blue beads. How many beads are there in all?
  13. 13.10 + 4 =
  14. 14.Sneha has 15 flowers and gets 2 flowers more. How many flowers does Sneha have now?
  15. 15.14 + 3 =
  16. 16.? + 2 = 3
  17. 17.6 + 8 =
  18. 18.7 + 5 + 3 =
  19. 19.5 + 9 =
  20. 20.Farhan has 3 marbles and gets 15 marbles more. How many marbles does Farhan have now?
  21. 21.2 + 6 =
  22. 22.6 + 7 + 4 =
  23. 23.There are 3 green crayons and 15 yellow crayons. How many crayons are there in all?
  24. 24.There are 3 yellow balloons and 12 white balloons. How many balloons are there in all?
  25. 25.Meera has 2 shells and gets 2 shells more. How many shells does Meera have now?
  26. 26.1 + ? = 6
  27. 27.There are 4 white kites and 5 blue kites. How many kites are there in all?
  28. 28.6 + ? = 10
  29. 29.3 + 1 + 3 =
  30. 30.7 + 1 =
  31. 31.Saanvi has 8 pencils and gets 2 pencils more. How many pencils does Saanvi have now?
  32. 32.There are 9 white kites and 3 blue kites. How many kites are there in all?
  33. 33.There are 9 blue beads and 11 white beads. How many beads are there in all?
  34. 34.19 + 1 =
  35. 35.There are 3 yellow balls and 11 white balls. How many balls are there in all?
  36. 36.8 + 1 =
  37. 37.8 + 4 =
  38. 38.? + 3 = 6
  39. 39.9 + 10 =
  40. 40.Priya has 7 books and gets 1 book more. How many books does Priya have now?

Answer key

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

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