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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 961 · 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. 1.6 + 11 =
  2. 2.5 + ? = 10
  3. 3.There are 12 red beads and 5 green beads. How many beads are there in all?
  4. 4.8 + 6 + 1 =
  5. 5.There are 5 yellow kites and 2 pink kites. How many kites are there in all?
  6. 6.There are 4 pink balloons and 5 red balloons. How many balloons are there in all?
  7. 7.13 + 5 =
  8. 8.There are 10 yellow balloons and 9 white balloons. How many balloons are there in all?
  9. 9.Manav has 14 laddoos and gets 2 laddoos more. How many laddoos does Manav have now?
  10. 10.6 + 7 =
  11. 11.5 + 1 =
  12. 12.? + 2 = 12
  13. 13.Arjun has 8 flowers and gets 4 flowers more. How many flowers does Arjun have now?
  14. 14.Rohan has 6 pencils and gets 7 pencils more. How many pencils does Rohan have now?
  15. 15.There are 3 green flowers and 16 yellow flowers. How many flowers are there in all?
  16. 16.There are 2 blue flowers and 9 pink flowers. How many flowers are there in all?
  17. 17.Joseph has 14 books and gets 6 books more. How many books does Joseph have now?
  18. 18.There are 4 green balls and 13 red balls. How many balls are there in all?
  19. 19.1 + 15 =
  20. 20.? + 1 = 14
  21. 21.5 + 8 =
  22. 22.Joseph has 12 marbles and gets 3 marbles more. How many marbles does Joseph have now?
  23. 23.Aarav has 6 mangoes and gets 3 mangoes more. How many mangoes does Aarav have now?
  24. 24.10 + 7 =
  25. 25.Diya has 7 mangoes and gets 3 mangoes more. How many mangoes does Diya have now?
  26. 26.4 + 10 =
  27. 27.There are 5 yellow flowers and 6 blue flowers. How many flowers are there in all?
  28. 28.Diya has 14 kites and gets 6 kites more. How many kites does Diya have now?
  29. 29.Rahul has 7 mangoes and gets 11 mangoes more. How many mangoes does Rahul have now?
  30. 30.7 + 7 + 2 =
  31. 31.2 + 8 + 9 =
  32. 32.5 + ? = 20
  33. 33.Arjun has 2 balloons and gets 13 balloons more. How many balloons does Arjun have now?
  34. 34.Gurpreet has 8 balloons and gets 4 balloons more. How many balloons does Gurpreet have now?
  35. 35.Rohan has 13 kites and gets 7 kites more. How many kites does Rohan have now?
  36. 36.7 + 9 =
  37. 37.Lakshmi has 7 shells and gets 6 shells more. How many shells does Lakshmi have now?
  38. 38.Kabir has 4 balls and gets 16 balls more. How many balls does Kabir have now?
  39. 39.There are 3 green flowers and 15 blue flowers. How many flowers are there in all?
  40. 40.There are 5 red crayons and 9 yellow crayons. How many crayons are there in all?

Answer key

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

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