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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 203 · 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 = 6
  2. 2.There are 7 yellow beads and 9 white beads. How many beads are there in all?
  3. 3.Karan has 2 balloons and gets 7 balloons more. How many balloons does Karan have now?
  4. 4.12 + 1 =
  5. 5.4 + 6 + 9 =
  6. 6.3 + 4 + 7 =
  7. 7.Zoya has 3 kites and gets 13 kites more. How many kites does Zoya have now?
  8. 8.1 + ? = 8
  9. 9.14 + ? = 16
  10. 10.Meera has 10 kites and gets 4 kites more. How many kites does Meera have now?
  11. 11.There are 12 blue beads and 4 green beads. How many beads are there in all?
  12. 12.There are 11 white beads and 8 red beads. How many beads are there in all?
  13. 13.14 + 4 =
  14. 14.1 + 4 + 1 =
  15. 15.? + 7 = 8
  16. 16.Aarav has 5 books and gets 4 books more. How many books does Aarav have now?
  17. 17.18 + 1 =
  18. 18.11 + 3 =
  19. 19.18 + 2 =
  20. 20.2 + 1 + 6 =
  21. 21.8 + 8 + 3 =
  22. 22.19 + 1 =
  23. 23.There are 11 white balloons and 6 red balloons. How many balloons are there in all?
  24. 24.There are 4 white beads and 12 yellow beads. How many beads are there in all?
  25. 25.There are 11 green balls and 9 white balls. How many balls are there in all?
  26. 26.2 + ? = 10
  27. 27.5 + 1 + 7 =
  28. 28.There are 9 blue flowers and 2 pink flowers. How many flowers are there in all?
  29. 29.Dev has 13 laddoos and gets 2 laddoos more. How many laddoos does Dev have now?
  30. 30.7 + 8 + 5 =
  31. 31.1 + 13 =
  32. 32.There are 12 pink balls and 8 red balls. How many balls are there in all?
  33. 33.3 + ? = 4
  34. 34.Tara has 13 balloons and gets 2 balloons more. How many balloons does Tara have now?
  35. 35.Arjun has 2 crayons and gets 9 crayons more. How many crayons does Arjun have now?
  36. 36.There are 3 pink flowers and 5 white flowers. How many flowers are there in all?
  37. 37.12 + ? = 20
  38. 38.There are 11 yellow beads and 9 pink beads. How many beads are there in all?
  39. 39.Arjun has 8 balloons and gets 10 balloons more. How many balloons does Arjun have now?
  40. 40.Pooja has 9 balloons and gets 3 balloons more. How many balloons does Pooja have now?

Answer key

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

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