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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 10 · 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. 1.17 + 3 =
  2. 2.Saanvi has 8 laddoos and gets 1 laddoo more. How many laddoos does Saanvi have now?
  3. 3.14 + 2 =
  4. 4.There are 2 red balls and 14 white balls. How many balls are there in all?
  5. 5.15 + 4 =
  6. 6.7 + 6 + 7 =
  7. 7.? + 2 = 13
  8. 8.17 + 2 =
  9. 9.1 + 2 + 2 =
  10. 10.There are 6 red balls and 3 green balls. How many balls are there in all?
  11. 11.6 + 3 =
  12. 12.Ishaan has 7 balls and gets 11 balls more. How many balls does Ishaan have now?
  13. 13.There are 8 blue balls and 7 red balls. How many balls are there in all?
  14. 14.? + 5 = 19
  15. 15.5 + 9 =
  16. 16.3 + 1 + 6 =
  17. 17.7 + 2 + 8 =
  18. 18.3 + 7 + 10 =
  19. 19.There are 9 red crayons and 8 pink crayons. How many crayons are there in all?
  20. 20.? + 1 = 15
  21. 21.There are 8 yellow flowers and 4 pink flowers. How many flowers are there in all?
  22. 22.Rohan has 5 balls and gets 8 balls more. How many balls does Rohan have now?
  23. 23.? + 10 = 14
  24. 24.Meera has 8 books and gets 5 books more. How many books does Meera have now?
  25. 25.3 + 4 =
  26. 26.Kabir has 2 balloons and gets 4 balloons more. How many balloons does Kabir have now?
  27. 27.There are 8 white beads and 9 yellow beads. How many beads are there in all?
  28. 28.Aarav has 14 bananas and gets 6 bananas more. How many bananas does Aarav have now?
  29. 29.6 + 2 + 2 =
  30. 30.? + 3 = 4
  31. 31.? + 9 = 20
  32. 32.Kavya has 12 flowers and gets 5 flowers more. How many flowers does Kavya have now?
  33. 33.8 + ? = 17
  34. 34.Kabir has 2 pencils and gets 12 pencils more. How many pencils does Kabir have now?
  35. 35.Ananya has 2 marbles and gets 13 marbles more. How many marbles does Ananya have now?
  36. 36.There are 6 pink flowers and 14 red flowers. How many flowers are there in all?
  37. 37.9 + 9 =
  38. 38.2 + 4 =
  39. 39.Manav has 12 laddoos and gets 5 laddoos more. How many laddoos does Manav have now?
  40. 40.1 + 2 + 17 =

Answer key

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

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