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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 928 · 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.Rohan has 15 flowers and gets 4 flowers more. How many flowers does Rohan have now?
  2. 2.6 + ? = 7
  3. 3.1 + 19 =
  4. 4.Pooja has 11 kites and gets 3 kites more. How many kites does Pooja have now?
  5. 5.? + 1 = 6
  6. 6.2 + ? = 10
  7. 7.12 + 5 =
  8. 8.1 + 12 =
  9. 9.7 + 8 + 3 =
  10. 10.? + 16 = 20
  11. 11.There are 8 green balls and 2 blue balls. How many balls are there in all?
  12. 12.11 + 6 =
  13. 13.15 + ? = 16
  14. 14.There are 11 pink crayons and 8 red crayons. How many crayons are there in all?
  15. 15.Aditya has 13 books and gets 2 books more. How many books does Aditya have now?
  16. 16.Karan has 5 pencils and gets 7 pencils more. How many pencils does Karan have now?
  17. 17.Nisha has 7 bananas and gets 11 bananas more. How many bananas does Nisha have now?
  18. 18.There are 12 pink crayons and 3 blue crayons. How many crayons are there in all?
  19. 19.Arjun has 11 shells and gets 8 shells more. How many shells does Arjun have now?
  20. 20.2 + 4 =
  21. 21.Kavya has 12 laddoos and gets 5 laddoos more. How many laddoos does Kavya have now?
  22. 22.9 + 4 =
  23. 23.19 + 1 =
  24. 24.12 + 2 =
  25. 25.There are 9 yellow balloons and 5 green balloons. How many balloons are there in all?
  26. 26.5 + ? = 19
  27. 27.Farhan has 15 pencils and gets 1 pencil more. How many pencils does Farhan have now?
  28. 28.7 + 8 =
  29. 29.13 + 7 =
  30. 30.Kavya has 13 mangoes and gets 2 mangoes more. How many mangoes does Kavya have now?
  31. 31.Joseph has 3 balloons and gets 5 balloons more. How many balloons does Joseph have now?
  32. 32.2 + 3 + 9 =
  33. 33.8 + 8 =
  34. 34.There are 7 yellow flowers and 3 green flowers. How many flowers are there in all?
  35. 35.Lakshmi has 7 marbles and gets 5 marbles more. How many marbles does Lakshmi have now?
  36. 36.? + 17 = 18
  37. 37.? + 1 = 5
  38. 38.11 + 8 =
  39. 39.? + 1 = 4
  40. 40.There are 10 yellow balloons and 2 pink balloons. How many balloons are there in all?

Answer key

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

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