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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 975 · 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 = 7
  2. 2.5 + 13 =
  3. 3.14 + 6 =
  4. 4.There are 12 yellow beads and 3 blue beads. How many beads are there in all?
  5. 5.5 + 4 + 11 =
  6. 6.6 + 7 + 4 =
  7. 7.14 + 3 =
  8. 8.Ananya has 5 kites and gets 8 kites more. How many kites does Ananya have now?
  9. 9.? + 1 = 7
  10. 10.Sneha has 9 bananas and gets 3 bananas more. How many bananas does Sneha have now?
  11. 11.Zoya has 14 pencils and gets 1 pencil more. How many pencils does Zoya have now?
  12. 12.8 + 6 + 6 =
  13. 13.8 + 3 + 5 =
  14. 14.2 + 17 =
  15. 15.Zoya has 15 shells and gets 5 shells more. How many shells does Zoya have now?
  16. 16.? + 2 = 16
  17. 17.6 + 5 + 3 =
  18. 18.There are 2 blue kites and 5 yellow kites. How many kites are there in all?
  19. 19.4 + ? = 7
  20. 20.3 + 1 + 5 =
  21. 21.2 + 2 + 12 =
  22. 22.Tara has 3 pencils and gets 15 pencils more. How many pencils does Tara have now?
  23. 23.2 + 15 =
  24. 24.5 + 7 + 3 =
  25. 25.1 + 1 + 11 =
  26. 26.? + 1 = 9
  27. 27.Priya has 12 laddoos and gets 5 laddoos more. How many laddoos does Priya have now?
  28. 28.Tara has 5 laddoos and gets 11 laddoos more. How many laddoos does Tara have now?
  29. 29.Vivaan has 14 books and gets 2 books more. How many books does Vivaan have now?
  30. 30.? + 4 = 16
  31. 31.? + 14 = 15
  32. 32.2 + ? = 7
  33. 33.There are 5 green kites and 4 red kites. How many kites are there in all?
  34. 34.3 + 17 =
  35. 35.2 + ? = 11
  36. 36.Riya has 13 laddoos and gets 6 laddoos more. How many laddoos does Riya have now?
  37. 37.? + 5 = 9
  38. 38.There are 4 white flowers and 2 blue flowers. How many flowers are there in all?
  39. 39.11 + ? = 18
  40. 40.6 + ? = 19

Answer key

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

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