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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 614 · 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.Priya has 5 mangoes and gets 4 mangoes more. How many mangoes does Priya have now?
  2. 2.1 + 7 + 6 =
  3. 3.5 + 5 =
  4. 4.Dev has 12 laddoos and gets 6 laddoos more. How many laddoos does Dev have now?
  5. 5.13 + 6 =
  6. 6.? + 1 = 3
  7. 7.7 + 1 + 7 =
  8. 8.18 + 1 =
  9. 9.13 + 3 =
  10. 10.There are 4 green crayons and 9 yellow crayons. How many crayons are there in all?
  11. 11.Ananya has 11 flowers and gets 2 flowers more. How many flowers does Ananya have now?
  12. 12.16 + 4 =
  13. 13.2 + 2 + 7 =
  14. 14.7 + 1 + 2 =
  15. 15.3 + 2 + 8 =
  16. 16.9 + 7 =
  17. 17.There are 11 green kites and 3 white kites. How many kites are there in all?
  18. 18.8 + 9 =
  19. 19.Vivaan has 12 bananas and gets 4 bananas more. How many bananas does Vivaan have now?
  20. 20.1 + 1 + 13 =
  21. 21.? + 3 = 13
  22. 22.11 + ? = 17
  23. 23.? + 3 = 8
  24. 24.13 + 7 =
  25. 25.? + 5 = 20
  26. 26.Priya has 4 marbles and gets 11 marbles more. How many marbles does Priya have now?
  27. 27.Farhan has 10 pencils and gets 8 pencils more. How many pencils does Farhan have now?
  28. 28.1 + 14 =
  29. 29.8 + 1 + 7 =
  30. 30.6 + 10 =
  31. 31.Sneha has 3 books and gets 16 books more. How many books does Sneha have now?
  32. 32.? + 7 = 20
  33. 33.There are 3 blue flowers and 16 pink flowers. How many flowers are there in all?
  34. 34.Arjun has 8 pencils and gets 4 pencils more. How many pencils does Arjun have now?
  35. 35.? + 14 = 16
  36. 36.8 + 3 + 3 =
  37. 37.There are 11 blue balloons and 9 red balloons. How many balloons are there in all?
  38. 38.8 + 7 + 2 =
  39. 39.There are 4 pink flowers and 16 blue flowers. How many flowers are there in all?
  40. 40.3 + 3 + 10 =

Answer key

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

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