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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 855 · 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.Pooja has 4 laddoos and gets 1 laddoo more. How many laddoos does Pooja have now?
  2. 2.There are 12 blue crayons and 4 red crayons. How many crayons are there in all?
  3. 3.? + 2 = 5
  4. 4.16 + 3 =
  5. 5.7 + 7 =
  6. 6.Tara has 7 books and gets 3 books more. How many books does Tara have now?
  7. 7.8 + 3 =
  8. 8.11 + 5 =
  9. 9.5 + 11 =
  10. 10.8 + 8 + 1 =
  11. 11.5 + 3 + 4 =
  12. 12.Gurpreet has 12 kites and gets 2 kites more. How many kites does Gurpreet have now?
  13. 13.Nisha has 10 bananas and gets 9 bananas more. How many bananas does Nisha have now?
  14. 14.5 + ? = 7
  15. 15.1 + ? = 4
  16. 16.6 + 2 + 10 =
  17. 17.12 + ? = 19
  18. 18.6 + 7 + 2 =
  19. 19.8 + 4 =
  20. 20.5 + 12 =
  21. 21.Lakshmi has 9 kites and gets 7 kites more. How many kites does Lakshmi have now?
  22. 22.There are 4 red beads and 5 blue beads. How many beads are there in all?
  23. 23.? + 18 = 19
  24. 24.? + 3 = 4
  25. 25.17 + 1 =
  26. 26.4 + ? = 16
  27. 27.2 + 2 + 12 =
  28. 28.7 + 8 + 4 =
  29. 29.6 + 3 + 1 =
  30. 30.There are 10 yellow flowers and 7 white flowers. How many flowers are there in all?
  31. 31.12 + 1 =
  32. 32.6 + 3 =
  33. 33.1 + 14 =
  34. 34.There are 5 pink balls and 11 yellow balls. How many balls are there in all?
  35. 35.4 + 6 =
  36. 36.There are 3 green flowers and 11 pink flowers. How many flowers are there in all?
  37. 37.Saanvi has 10 pencils and gets 1 pencil more. How many pencils does Saanvi have now?
  38. 38.Rahul has 15 pencils and gets 1 pencil more. How many pencils does Rahul have now?
  39. 39.There are 6 red balloons and 6 blue balloons. How many balloons are there in all?
  40. 40.4 + ? = 20

Answer key

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

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