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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 964 · 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. 1.4 + 3 + 7 =
  2. 2.Isha has 3 balls and gets 6 balls more. How many balls does Isha have now?
  3. 3.5 + ? = 6
  4. 4.9 + ? = 19
  5. 5.Nisha has 3 pencils and gets 4 pencils more. How many pencils does Nisha have now?
  6. 6.1 + 8 + 10 =
  7. 7.3 + 8 =
  8. 8.2 + 5 + 3 =
  9. 9.17 + 3 =
  10. 10.Priya has 3 balls and gets 9 balls more. How many balls does Priya have now?
  11. 11.7 + 6 =
  12. 12.5 + 1 + 1 =
  13. 13.There are 10 green balloons and 8 yellow balloons. How many balloons are there in all?
  14. 14.6 + 5 + 9 =
  15. 15.? + 1 = 11
  16. 16.There are 5 green beads and 3 yellow beads. How many beads are there in all?
  17. 17.18 + 2 =
  18. 18.16 + 2 =
  19. 19.? + 2 = 5
  20. 20.10 + 2 =
  21. 21.8 + 7 + 2 =
  22. 22.? + 4 = 6
  23. 23.There are 2 yellow kites and 2 red kites. How many kites are there in all?
  24. 24.1 + ? = 4
  25. 25.Kabir has 9 shells and gets 5 shells more. How many shells does Kabir have now?
  26. 26.1 + 5 + 12 =
  27. 27.5 + 8 + 7 =
  28. 28.6 + ? = 11
  29. 29.Isha has 10 laddoos and gets 1 laddoo more. How many laddoos does Isha have now?
  30. 30.Isha has 2 books and gets 9 books more. How many books does Isha have now?
  31. 31.2 + 3 =
  32. 32.8 + 3 + 9 =
  33. 33.Meera has 8 crayons and gets 11 crayons more. How many crayons does Meera have now?
  34. 34.5 + ? = 10
  35. 35.18 + 1 =
  36. 36.3 + 13 =
  37. 37.5 + 1 =
  38. 38.14 + ? = 17
  39. 39.There are 10 red balls and 2 pink balls. How many balls are there in all?
  40. 40.? + 8 = 16

Answer key

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

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