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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 979 · 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.There are 11 yellow kites and 6 blue kites. How many kites are there in all?
  2. 2.8 + 2 + 3 =
  3. 3.2 + 6 =
  4. 4.Vivaan has 5 balls and gets 4 balls more. How many balls does Vivaan have now?
  5. 5.9 + 8 =
  6. 6.Saanvi has 8 balls and gets 7 balls more. How many balls does Saanvi have now?
  7. 7.? + 12 = 15
  8. 8.4 + 12 =
  9. 9.1 + ? = 3
  10. 10.? + 2 = 10
  11. 11.2 + ? = 7
  12. 12.There are 7 white kites and 12 pink kites. How many kites are there in all?
  13. 13.Tara has 12 mangoes and gets 5 mangoes more. How many mangoes does Tara have now?
  14. 14.4 + 3 + 12 =
  15. 15.4 + 8 =
  16. 16.There are 4 yellow flowers and 7 pink flowers. How many flowers are there in all?
  17. 17.There are 10 green kites and 6 white kites. How many kites are there in all?
  18. 18.13 + 5 =
  19. 19.Karan has 11 shells and gets 9 shells more. How many shells does Karan have now?
  20. 20.4 + 5 =
  21. 21.2 + 7 =
  22. 22.5 + 6 + 3 =
  23. 23.5 + 4 + 1 =
  24. 24.3 + 3 + 10 =
  25. 25.There are 2 yellow flowers and 12 blue flowers. How many flowers are there in all?
  26. 26.6 + 12 =
  27. 27.6 + ? = 7
  28. 28.Aditya has 6 crayons and gets 14 crayons more. How many crayons does Aditya have now?
  29. 29.12 + 6 =
  30. 30.8 + 5 + 7 =
  31. 31.14 + 1 =
  32. 32.19 + 1 =
  33. 33.1 + 5 + 1 =
  34. 34.? + 2 = 4
  35. 35.12 + 3 =
  36. 36.? + 2 = 14
  37. 37.There are 6 red flowers and 2 green flowers. How many flowers are there in all?
  38. 38.There are 11 blue balls and 6 white balls. How many balls are there in all?
  39. 39.Rohan has 6 shells and gets 8 shells more. How many shells does Rohan have now?
  40. 40.5 + 2 + 1 =

Answer key

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

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