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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 338 · 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 5 pink kites and 5 blue kites. How many kites are there in all?
  2. 2.? + 2 = 3
  3. 3.1 + ? = 20
  4. 4.There are 9 green flowers and 7 yellow flowers. How many flowers are there in all?
  5. 5.Pooja has 13 balls and gets 3 balls more. How many balls does Pooja have now?
  6. 6.2 + 4 + 5 =
  7. 7.Kabir has 8 balls and gets 12 balls more. How many balls does Kabir have now?
  8. 8.There are 5 pink balloons and 9 green balloons. How many balloons are there in all?
  9. 9.1 + 8 + 4 =
  10. 10.? + 1 = 4
  11. 11.9 + 2 =
  12. 12.3 + ? = 16
  13. 13.2 + 17 =
  14. 14.10 + 8 =
  15. 15.13 + 2 =
  16. 16.3 + 4 + 9 =
  17. 17.There are 10 green beads and 5 pink beads. How many beads are there in all?
  18. 18.There are 2 green balloons and 4 red balloons. How many balloons are there in all?
  19. 19.Rohan has 5 laddoos and gets 10 laddoos more. How many laddoos does Rohan have now?
  20. 20.1 + 1 + 9 =
  21. 21.Kavya has 3 laddoos and gets 13 laddoos more. How many laddoos does Kavya have now?
  22. 22.Farhan has 6 marbles and gets 5 marbles more. How many marbles does Farhan have now?
  23. 23.5 + ? = 6
  24. 24.6 + 1 + 2 =
  25. 25.19 + 1 =
  26. 26.4 + 7 + 4 =
  27. 27.16 + 4 =
  28. 28.? + 4 = 16
  29. 29.? + 2 = 14
  30. 30.Saanvi has 10 marbles and gets 8 marbles more. How many marbles does Saanvi have now?
  31. 31.12 + 2 =
  32. 32.2 + 12 =
  33. 33.There are 2 pink beads and 15 blue beads. How many beads are there in all?
  34. 34.5 + ? = 19
  35. 35.There are 2 red beads and 5 blue beads. How many beads are there in all?
  36. 36.There are 9 pink beads and 11 white beads. How many beads are there in all?
  37. 37.Zoya has 2 crayons and gets 15 crayons more. How many crayons does Zoya have now?
  38. 38.3 + 6 + 8 =
  39. 39.Aarav has 9 laddoos and gets 10 laddoos more. How many laddoos does Aarav have now?
  40. 40.11 + 5 =

Answer key

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

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