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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 818 · 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.There are 3 yellow kites and 10 white kites. How many kites are there in all?
  2. 2.Lakshmi has 7 balloons and gets 10 balloons more. How many balloons does Lakshmi have now?
  3. 3.10 + ? = 11
  4. 4.8 + 7 =
  5. 5.Gurpreet has 15 balloons and gets 4 balloons more. How many balloons does Gurpreet have now?
  6. 6.? + 2 = 4
  7. 7.15 + 1 =
  8. 8.There are 8 white flowers and 7 yellow flowers. How many flowers are there in all?
  9. 9.13 + 2 =
  10. 10.? + 5 = 10
  11. 11.There are 4 yellow kites and 15 pink kites. How many kites are there in all?
  12. 12.9 + 5 =
  13. 13.Lakshmi has 7 crayons and gets 10 crayons more. How many crayons does Lakshmi have now?
  14. 14.1 + 16 =
  15. 15.18 + 2 =
  16. 16.Aarav has 3 shells and gets 8 shells more. How many shells does Aarav have now?
  17. 17.There are 2 white beads and 5 green beads. How many beads are there in all?
  18. 18.Kabir has 4 balloons and gets 3 balloons more. How many balloons does Kabir have now?
  19. 19.There are 10 pink kites and 10 green kites. How many kites are there in all?
  20. 20.9 + ? = 13
  21. 21.10 + ? = 13
  22. 22.2 + ? = 7
  23. 23.There are 9 blue kites and 7 red kites. How many kites are there in all?
  24. 24.1 + 5 + 8 =
  25. 25.There are 2 red flowers and 15 yellow flowers. How many flowers are there in all?
  26. 26.Ishaan has 10 marbles and gets 1 marble more. How many marbles does Ishaan have now?
  27. 27.Priya has 5 kites and gets 9 kites more. How many kites does Priya have now?
  28. 28.Rohan has 15 laddoos and gets 2 laddoos more. How many laddoos does Rohan have now?
  29. 29.? + 2 = 14
  30. 30.There are 4 blue balloons and 3 white balloons. How many balloons are there in all?
  31. 31.There are 2 white flowers and 11 green flowers. How many flowers are there in all?
  32. 32.There are 6 yellow beads and 8 green beads. How many beads are there in all?
  33. 33.? + 2 = 6
  34. 34.There are 2 yellow flowers and 4 pink flowers. How many flowers are there in all?
  35. 35.1 + 5 =
  36. 36.Pooja has 9 pencils and gets 1 pencil more. How many pencils does Pooja have now?
  37. 37.2 + 2 + 2 =
  38. 38.2 + 11 =
  39. 39.1 + 5 + 3 =
  40. 40.5 + 13 =

Answer key

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

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