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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 541 · 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. 1.13 + 2 =
  2. 2.There are 4 yellow flowers and 8 white flowers. How many flowers are there in all?
  3. 3.4 + 11 =
  4. 4.There are 4 yellow crayons and 5 pink crayons. How many crayons are there in all?
  5. 5.10 + 3 =
  6. 6.There are 7 pink beads and 9 green beads. How many beads are there in all?
  7. 7.? + 3 = 11
  8. 8.18 + 2 =
  9. 9.4 + 3 =
  10. 10.Tara has 5 balloons and gets 11 balloons more. How many balloons does Tara have now?
  11. 11.Nisha has 12 bananas and gets 4 bananas more. How many bananas does Nisha have now?
  12. 12.2 + ? = 3
  13. 13.6 + 6 + 1 =
  14. 14.Isha has 13 balloons and gets 4 balloons more. How many balloons does Isha have now?
  15. 15.4 + ? = 16
  16. 16.1 + ? = 14
  17. 17.7 + 1 =
  18. 18.2 + 8 + 8 =
  19. 19.15 + 4 =
  20. 20.8 + 7 =
  21. 21.Aditya has 5 balls and gets 4 balls more. How many balls does Aditya have now?
  22. 22.There are 12 blue balloons and 5 white balloons. How many balloons are there in all?
  23. 23.There are 8 green balloons and 12 white balloons. How many balloons are there in all?
  24. 24.Arjun has 8 shells and gets 2 shells more. How many shells does Arjun have now?
  25. 25.5 + 1 + 3 =
  26. 26.2 + 5 =
  27. 27.Rohan has 9 shells and gets 4 shells more. How many shells does Rohan have now?
  28. 28.3 + 7 =
  29. 29.10 + 1 =
  30. 30.2 + 7 + 8 =
  31. 31.2 + ? = 6
  32. 32.12 + ? = 19
  33. 33.3 + 12 =
  34. 34.7 + 6 + 3 =
  35. 35.Kabir has 2 balloons and gets 6 balloons more. How many balloons does Kabir have now?
  36. 36.5 + 2 + 1 =
  37. 37.4 + ? = 5
  38. 38.10 + ? = 19
  39. 39.There are 3 white flowers and 13 green flowers. How many flowers are there in all?
  40. 40.Aditya has 4 kites and gets 4 kites more. How many kites does Aditya have now?

Answer key

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

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