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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 181 · 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.Arjun has 8 pencils and gets 8 pencils more. How many pencils does Arjun have now?
  2. 2.Farhan has 7 balloons and gets 10 balloons more. How many balloons does Farhan have now?
  3. 3.? + 1 = 4
  4. 4.4 + 3 =
  5. 5.There are 2 green beads and 7 blue beads. How many beads are there in all?
  6. 6.There are 6 yellow crayons and 14 green crayons. How many crayons are there in all?
  7. 7.Tara has 14 kites and gets 1 kite more. How many kites does Tara have now?
  8. 8.There are 10 yellow flowers and 9 red flowers. How many flowers are there in all?
  9. 9.3 + 8 + 7 =
  10. 10.1 + 1 + 11 =
  11. 11.16 + 4 =
  12. 12.Manav has 4 shells and gets 2 shells more. How many shells does Manav have now?
  13. 13.There are 10 blue kites and 4 green kites. How many kites are there in all?
  14. 14.? + 1 = 3
  15. 15.Tara has 5 balloons and gets 7 balloons more. How many balloons does Tara have now?
  16. 16.3 + 1 + 8 =
  17. 17.There are 2 red balloons and 18 green balloons. How many balloons are there in all?
  18. 18.Rohan has 13 bananas and gets 2 bananas more. How many bananas does Rohan have now?
  19. 19.4 + 8 + 1 =
  20. 20.10 + ? = 18
  21. 21.15 + 4 =
  22. 22.There are 3 yellow balls and 2 white balls. How many balls are there in all?
  23. 23.Manav has 2 books and gets 18 books more. How many books does Manav have now?
  24. 24.15 + 5 =
  25. 25.Joseph has 6 flowers and gets 14 flowers more. How many flowers does Joseph have now?
  26. 26.6 + 1 =
  27. 27.6 + 4 + 3 =
  28. 28.6 + ? = 15
  29. 29.Kabir has 3 books and gets 3 books more. How many books does Kabir have now?
  30. 30.Aditya has 5 flowers and gets 8 flowers more. How many flowers does Aditya have now?
  31. 31.Dev has 15 pencils and gets 3 pencils more. How many pencils does Dev have now?
  32. 32.Lakshmi has 11 bananas and gets 1 banana more. How many bananas does Lakshmi have now?
  33. 33.5 + 15 =
  34. 34.Isha has 15 pencils and gets 1 pencil more. How many pencils does Isha have now?
  35. 35.5 + 1 + 1 =
  36. 36.? + 2 = 6
  37. 37.There are 4 red balls and 3 white balls. How many balls are there in all?
  38. 38.14 + 6 =
  39. 39.There are 4 red crayons and 11 pink crayons. How many crayons are there in all?
  40. 40.? + 5 = 14

Answer key

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

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