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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 75 · 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. 1.1 + 4 + 9 =
  2. 2.There are 11 blue flowers and 6 green flowers. How many flowers are there in all?
  3. 3.Priya has 12 laddoos and gets 3 laddoos more. How many laddoos does Priya have now?
  4. 4.? + 4 = 7
  5. 5.10 + 3 =
  6. 6.6 + 2 + 11 =
  7. 7.? + 10 = 18
  8. 8.9 + ? = 13
  9. 9.Riya has 15 shells and gets 2 shells more. How many shells does Riya have now?
  10. 10.17 + 1 =
  11. 11.1 + 1 =
  12. 12.? + 4 = 12
  13. 13.1 + 8 + 10 =
  14. 14.14 + 3 =
  15. 15.There are 3 green kites and 9 pink kites. How many kites are there in all?
  16. 16.There are 9 pink crayons and 11 yellow crayons. How many crayons are there in all?
  17. 17.Nisha has 13 flowers and gets 3 flowers more. How many flowers does Nisha have now?
  18. 18.? + 1 = 4
  19. 19.14 + ? = 15
  20. 20.Meera has 10 bananas and gets 2 bananas more. How many bananas does Meera have now?
  21. 21.7 + 5 + 8 =
  22. 22.19 + 1 =
  23. 23.8 + 8 + 1 =
  24. 24.18 + 1 =
  25. 25.Ishaan has 14 bananas and gets 3 bananas more. How many bananas does Ishaan have now?
  26. 26.? + 2 = 13
  27. 27.1 + ? = 6
  28. 28.7 + ? = 18
  29. 29.8 + 10 =
  30. 30.Rahul has 4 kites and gets 3 kites more. How many kites does Rahul have now?
  31. 31.18 + 2 =
  32. 32.There are 11 white kites and 5 red kites. How many kites are there in all?
  33. 33.Vivaan has 14 marbles and gets 2 marbles more. How many marbles does Vivaan have now?
  34. 34.There are 6 blue crayons and 11 yellow crayons. How many crayons are there in all?
  35. 35.Vivaan has 12 balloons and gets 4 balloons more. How many balloons does Vivaan have now?
  36. 36.17 + ? = 19
  37. 37.1 + 4 =
  38. 38.Tara has 15 laddoos and gets 1 laddoo more. How many laddoos does Tara have now?
  39. 39.Joseph has 6 shells and gets 9 shells more. How many shells does Joseph have now?
  40. 40.Kavya has 14 bananas and gets 3 bananas more. How many bananas does Kavya have now?

Answer key

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

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