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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 577 · 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.Lakshmi has 10 crayons and gets 6 crayons more. How many crayons does Lakshmi have now?
  2. 2.2 + 7 + 5 =
  3. 3.12 + 1 =
  4. 4.There are 6 yellow kites and 14 white kites. How many kites are there in all?
  5. 5.7 + 6 =
  6. 6.7 + 2 + 10 =
  7. 7.There are 6 white crayons and 10 blue crayons. How many crayons are there in all?
  8. 8.7 + 3 + 6 =
  9. 9.? + 1 = 5
  10. 10.6 + ? = 12
  11. 11.2 + 3 + 1 =
  12. 12.14 + ? = 16
  13. 13.1 + ? = 4
  14. 14.1 + 5 + 4 =
  15. 15.19 + 1 =
  16. 16.Priya has 6 books and gets 10 books more. How many books does Priya have now?
  17. 17.There are 3 blue kites and 13 red kites. How many kites are there in all?
  18. 18.There are 2 white kites and 5 yellow kites. How many kites are there in all?
  19. 19.1 + 3 =
  20. 20.12 + 2 =
  21. 21.10 + 9 =
  22. 22.7 + 8 + 2 =
  23. 23.Priya has 14 balls and gets 1 ball more. How many balls does Priya have now?
  24. 24.Sneha has 14 laddoos and gets 1 laddoo more. How many laddoos does Sneha have now?
  25. 25.2 + 7 + 8 =
  26. 26.12 + 3 =
  27. 27.6 + 5 =
  28. 28.? + 1 = 9
  29. 29.11 + 3 =
  30. 30.Rahul has 3 bananas and gets 16 bananas more. How many bananas does Rahul have now?
  31. 31.There are 4 blue beads and 4 white beads. How many beads are there in all?
  32. 32.There are 8 blue flowers and 3 green flowers. How many flowers are there in all?
  33. 33.10 + ? = 18
  34. 34.8 + 8 =
  35. 35.There are 9 green flowers and 11 yellow flowers. How many flowers are there in all?
  36. 36.10 + ? = 13
  37. 37.There are 3 red balls and 15 white balls. How many balls are there in all?
  38. 38.Pooja has 12 mangoes and gets 7 mangoes more. How many mangoes does Pooja have now?
  39. 39.4 + ? = 14
  40. 40.Rohan has 12 kites and gets 5 kites more. How many kites does Rohan have now?

Answer key

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

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