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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 490 · 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.Saanvi has 7 kites and gets 3 kites more. How many kites does Saanvi have now?
  2. 2.2 + 2 + 9 =
  3. 3.7 + 2 + 3 =
  4. 4.10 + 2 =
  5. 5.18 + 1 =
  6. 6.3 + 3 + 6 =
  7. 7.3 + 9 =
  8. 8.1 + ? = 3
  9. 9.14 + 2 =
  10. 10.1 + 1 + 2 =
  11. 11.7 + ? = 14
  12. 12.5 + 3 + 2 =
  13. 13.3 + 14 =
  14. 14.Meera has 9 laddoos and gets 11 laddoos more. How many laddoos does Meera have now?
  15. 15.15 + 5 =
  16. 16.4 + 2 + 9 =
  17. 17.There are 11 green balls and 2 pink balls. How many balls are there in all?
  18. 18.? + 2 = 3
  19. 19.5 + 1 + 9 =
  20. 20.Manav has 2 bananas and gets 8 bananas more. How many bananas does Manav have now?
  21. 21.There are 2 pink crayons and 8 blue crayons. How many crayons are there in all?
  22. 22.There are 4 green flowers and 9 white flowers. How many flowers are there in all?
  23. 23.Arjun has 7 shells and gets 3 shells more. How many shells does Arjun have now?
  24. 24.7 + 2 + 10 =
  25. 25.Joseph has 2 shells and gets 1 shell more. How many shells does Joseph have now?
  26. 26.Sneha has 9 laddoos and gets 8 laddoos more. How many laddoos does Sneha have now?
  27. 27.There are 5 blue balloons and 4 pink balloons. How many balloons are there in all?
  28. 28.8 + 4 + 2 =
  29. 29.Kavya has 2 balloons and gets 8 balloons more. How many balloons does Kavya have now?
  30. 30.7 + ? = 15
  31. 31.4 + 5 + 1 =
  32. 32.? + 14 = 18
  33. 33.3 + 1 + 4 =
  34. 34.? + 1 = 3
  35. 35.3 + 8 =
  36. 36.2 + ? = 17
  37. 37.2 + 8 + 9 =
  38. 38.Farhan has 12 balls and gets 6 balls more. How many balls does Farhan have now?
  39. 39.? + 2 = 4
  40. 40.14 + ? = 19

Answer key

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

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