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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 235 · 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.Arjun has 6 balls and gets 8 balls more. How many balls does Arjun have now?
  2. 2.3 + 1 + 15 =
  3. 3.? + 10 = 20
  4. 4.Nisha has 8 balls and gets 6 balls more. How many balls does Nisha have now?
  5. 5.6 + 3 + 1 =
  6. 6.3 + ? = 10
  7. 7.1 + 5 + 8 =
  8. 8.Riya has 9 mangoes and gets 2 mangoes more. How many mangoes does Riya have now?
  9. 9.? + 1 = 3
  10. 10.? + 1 = 7
  11. 11.? + 2 = 5
  12. 12.There are 4 green balls and 5 pink balls. How many balls are there in all?
  13. 13.Zoya has 10 bananas and gets 7 bananas more. How many bananas does Zoya have now?
  14. 14.There are 9 red kites and 2 white kites. How many kites are there in all?
  15. 15.6 + 2 + 12 =
  16. 16.1 + 4 + 11 =
  17. 17.Pooja has 6 laddoos and gets 12 laddoos more. How many laddoos does Pooja have now?
  18. 18.There are 10 green beads and 4 red beads. How many beads are there in all?
  19. 19.There are 4 yellow beads and 14 red beads. How many beads are there in all?
  20. 20.4 + 5 + 3 =
  21. 21.9 + 5 =
  22. 22.1 + 8 + 4 =
  23. 23.Rohan has 3 kites and gets 11 kites more. How many kites does Rohan have now?
  24. 24.? + 13 = 18
  25. 25.2 + ? = 5
  26. 26.Aditya has 6 kites and gets 11 kites more. How many kites does Aditya have now?
  27. 27.Saanvi has 4 flowers and gets 13 flowers more. How many flowers does Saanvi have now?
  28. 28.Aarav has 3 balloons and gets 14 balloons more. How many balloons does Aarav have now?
  29. 29.Farhan has 14 pencils and gets 4 pencils more. How many pencils does Farhan have now?
  30. 30.Meera has 14 pencils and gets 4 pencils more. How many pencils does Meera have now?
  31. 31.Ishaan has 14 pencils and gets 5 pencils more. How many pencils does Ishaan have now?
  32. 32.5 + 3 + 6 =
  33. 33.8 + 6 + 5 =
  34. 34.15 + 2 =
  35. 35.1 + ? = 17
  36. 36.Kabir has 5 laddoos and gets 14 laddoos more. How many laddoos does Kabir have now?
  37. 37.1 + ? = 4
  38. 38.There are 8 green kites and 12 red kites. How many kites are there in all?
  39. 39.Nisha has 10 kites and gets 2 kites more. How many kites does Nisha have now?
  40. 40.4 + 5 + 2 =

Answer key

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

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