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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 816 · 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. 1.7 + 13 =
  2. 2.There are 10 green balloons and 4 pink balloons. How many balloons are there in all?
  3. 3.Rohan has 7 balls and gets 13 balls more. How many balls does Rohan have now?
  4. 4.Aarav has 6 flowers and gets 9 flowers more. How many flowers does Aarav have now?
  5. 5.12 + 4 =
  6. 6.1 + ? = 18
  7. 7.7 + ? = 20
  8. 8.6 + 1 + 9 =
  9. 9.19 + 1 =
  10. 10.Manav has 3 bananas and gets 13 bananas more. How many bananas does Manav have now?
  11. 11.9 + 4 =
  12. 12.16 + 2 =
  13. 13.6 + 3 =
  14. 14.2 + ? = 20
  15. 15.Nisha has 7 pencils and gets 2 pencils more. How many pencils does Nisha have now?
  16. 16.4 + 3 + 13 =
  17. 17.There are 5 white balls and 3 blue balls. How many balls are there in all?
  18. 18.Kabir has 4 kites and gets 7 kites more. How many kites does Kabir have now?
  19. 19.5 + 5 + 6 =
  20. 20.Nisha has 7 flowers and gets 8 flowers more. How many flowers does Nisha have now?
  21. 21.1 + 1 + 1 =
  22. 22.Tara has 10 balloons and gets 1 balloon more. How many balloons does Tara have now?
  23. 23.There are 11 green beads and 7 blue beads. How many beads are there in all?
  24. 24.1 + ? = 10
  25. 25.2 + 7 + 11 =
  26. 26.10 + 9 =
  27. 27.2 + ? = 18
  28. 28.18 + 1 =
  29. 29.There are 6 blue kites and 12 yellow kites. How many kites are there in all?
  30. 30.8 + 6 + 5 =
  31. 31.3 + 6 + 9 =
  32. 32.7 + 8 =
  33. 33.4 + 16 =
  34. 34.Meera has 14 balls and gets 1 ball more. How many balls does Meera have now?
  35. 35.There are 12 green balls and 8 yellow balls. How many balls are there in all?
  36. 36.6 + 2 + 5 =
  37. 37.? + 8 = 20
  38. 38.? + 2 = 3
  39. 39.8 + 1 =
  40. 40.1 + 5 =

Answer key

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

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