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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 747 · 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.Aarav has 3 crayons and gets 5 crayons more. How many crayons does Aarav have now?
  2. 2.Vivaan has 11 laddoos and gets 6 laddoos more. How many laddoos does Vivaan have now?
  3. 3.Riya has 6 shells and gets 4 shells more. How many shells does Riya have now?
  4. 4.4 + 4 + 7 =
  5. 5.Meera has 3 bananas and gets 13 bananas more. How many bananas does Meera have now?
  6. 6.5 + 6 =
  7. 7.8 + 1 + 1 =
  8. 8.Joseph has 4 pencils and gets 1 pencil more. How many pencils does Joseph have now?
  9. 9.7 + ? = 13
  10. 10.Pooja has 6 books and gets 4 books more. How many books does Pooja have now?
  11. 11.19 + 1 =
  12. 12.? + 6 = 8
  13. 13.Zoya has 7 balls and gets 7 balls more. How many balls does Zoya have now?
  14. 14.There are 4 white balloons and 2 blue balloons. How many balloons are there in all?
  15. 15.4 + 6 + 4 =
  16. 16.11 + 1 =
  17. 17.2 + 11 =
  18. 18.Aditya has 4 balls and gets 14 balls more. How many balls does Aditya have now?
  19. 19.1 + ? = 3
  20. 20.Priya has 10 marbles and gets 7 marbles more. How many marbles does Priya have now?
  21. 21.9 + 2 =
  22. 22.4 + 10 =
  23. 23.4 + 2 + 7 =
  24. 24.4 + 7 =
  25. 25.There are 8 red balloons and 2 blue balloons. How many balloons are there in all?
  26. 26.5 + 7 + 1 =
  27. 27.4 + 4 =
  28. 28.16 + 4 =
  29. 29.1 + 1 + 15 =
  30. 30.1 + ? = 4
  31. 31.5 + 3 + 10 =
  32. 32.Farhan has 5 flowers and gets 15 flowers more. How many flowers does Farhan have now?
  33. 33.There are 12 yellow crayons and 8 pink crayons. How many crayons are there in all?
  34. 34.1 + ? = 7
  35. 35.9 + 10 =
  36. 36.Ananya has 13 marbles and gets 2 marbles more. How many marbles does Ananya have now?
  37. 37.6 + 2 + 1 =
  38. 38.2 + 16 =
  39. 39.? + 2 = 3
  40. 40.15 + 4 =

Answer key

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

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