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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 64 · 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.Kavya has 15 crayons and gets 3 crayons more. How many crayons does Kavya have now?
  2. 2.There are 6 blue flowers and 13 white flowers. How many flowers are there in all?
  3. 3.6 + 3 + 8 =
  4. 4.There are 5 pink crayons and 6 white crayons. How many crayons are there in all?
  5. 5.8 + 1 + 4 =
  6. 6.1 + 4 =
  7. 7.6 + 6 + 8 =
  8. 8.7 + 8 + 2 =
  9. 9.7 + 3 + 1 =
  10. 10.Aditya has 14 laddoos and gets 1 laddoo more. How many laddoos does Aditya have now?
  11. 11.There are 12 red flowers and 4 blue flowers. How many flowers are there in all?
  12. 12.? + 10 = 16
  13. 13.2 + 1 + 15 =
  14. 14.There are 2 red balloons and 9 yellow balloons. How many balloons are there in all?
  15. 15.5 + 7 + 2 =
  16. 16.There are 9 pink crayons and 2 blue crayons. How many crayons are there in all?
  17. 17.? + 5 = 16
  18. 18.There are 12 white flowers and 5 yellow flowers. How many flowers are there in all?
  19. 19.19 + 1 =
  20. 20.? + 1 = 17
  21. 21.? + 4 = 5
  22. 22.5 + ? = 18
  23. 23.6 + 1 + 9 =
  24. 24.4 + 7 =
  25. 25.Diya has 8 marbles and gets 3 marbles more. How many marbles does Diya have now?
  26. 26.? + 9 = 14
  27. 27.Manav has 4 marbles and gets 13 marbles more. How many marbles does Manav have now?
  28. 28.There are 3 blue beads and 8 red beads. How many beads are there in all?
  29. 29.10 + 7 =
  30. 30.7 + 12 =
  31. 31.? + 5 = 6
  32. 32.? + 2 = 11
  33. 33.There are 2 white flowers and 6 green flowers. How many flowers are there in all?
  34. 34.2 + ? = 6
  35. 35.8 + 1 =
  36. 36.8 + ? = 9
  37. 37.Aditya has 2 kites and gets 18 kites more. How many kites does Aditya have now?
  38. 38.13 + 2 =
  39. 39.11 + 4 =
  40. 40.5 + 8 + 7 =

Answer key

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

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