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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 881 · 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. 1.14 + ? = 16
  2. 2.10 + 7 =
  3. 3.4 + 7 + 4 =
  4. 4.There are 4 pink crayons and 5 red crayons. How many crayons are there in all?
  5. 5.There are 3 white crayons and 6 green crayons. How many crayons are there in all?
  6. 6.Manav has 4 books and gets 16 books more. How many books does Manav have now?
  7. 7.Kabir has 11 flowers and gets 9 flowers more. How many flowers does Kabir have now?
  8. 8.1 + ? = 7
  9. 9.Arjun has 4 mangoes and gets 10 mangoes more. How many mangoes does Arjun have now?
  10. 10.There are 6 green beads and 10 yellow beads. How many beads are there in all?
  11. 11.? + 3 = 18
  12. 12.Arjun has 12 balloons and gets 8 balloons more. How many balloons does Arjun have now?
  13. 13.4 + 1 + 4 =
  14. 14.Dev has 10 laddoos and gets 1 laddoo more. How many laddoos does Dev have now?
  15. 15.3 + 7 + 10 =
  16. 16.3 + 6 + 4 =
  17. 17.There are 7 blue flowers and 4 red flowers. How many flowers are there in all?
  18. 18.? + 10 = 13
  19. 19.7 + 6 + 2 =
  20. 20.There are 8 pink balloons and 11 red balloons. How many balloons are there in all?
  21. 21.There are 12 blue flowers and 8 pink flowers. How many flowers are there in all?
  22. 22.There are 12 red beads and 4 blue beads. How many beads are there in all?
  23. 23.Pooja has 10 marbles and gets 1 marble more. How many marbles does Pooja have now?
  24. 24.There are 10 red kites and 3 white kites. How many kites are there in all?
  25. 25.3 + 8 + 9 =
  26. 26.There are 5 red kites and 15 yellow kites. How many kites are there in all?
  27. 27.2 + 16 =
  28. 28.14 + ? = 15
  29. 29.4 + 2 =
  30. 30.Lakshmi has 3 kites and gets 2 kites more. How many kites does Lakshmi have now?
  31. 31.9 + 5 =
  32. 32.? + 1 = 4
  33. 33.10 + ? = 15
  34. 34.? + 3 = 14
  35. 35.Rahul has 15 balloons and gets 2 balloons more. How many balloons does Rahul have now?
  36. 36.5 + 10 =
  37. 37.4 + 12 =
  38. 38.10 + 3 =
  39. 39.Nisha has 15 crayons and gets 2 crayons more. How many crayons does Nisha have now?
  40. 40.There are 3 red flowers and 8 blue flowers. How many flowers are there in all?

Answer key

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

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