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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 983 · 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.Dev has 10 laddoos and gets 2 laddoos more. How many laddoos does Dev have now?
  2. 2.6 + 1 + 8 =
  3. 3.Manav has 5 balloons and gets 11 balloons more. How many balloons does Manav have now?
  4. 4.2 + 3 =
  5. 5.15 + 4 =
  6. 6.Dev has 5 pencils and gets 1 pencil more. How many pencils does Dev have now?
  7. 7.3 + 8 + 6 =
  8. 8.5 + 14 =
  9. 9.There are 12 white kites and 7 red kites. How many kites are there in all?
  10. 10.There are 2 yellow kites and 11 red kites. How many kites are there in all?
  11. 11.? + 3 = 19
  12. 12.2 + ? = 14
  13. 13.Nisha has 5 crayons and gets 13 crayons more. How many crayons does Nisha have now?
  14. 14.2 + ? = 17
  15. 15.6 + ? = 17
  16. 16.2 + 2 + 8 =
  17. 17.2 + 1 + 12 =
  18. 18.? + 2 = 3
  19. 19.8 + 4 =
  20. 20.1 + 2 =
  21. 21.There are 7 red crayons and 4 pink crayons. How many crayons are there in all?
  22. 22.2 + 5 + 5 =
  23. 23.There are 5 blue balloons and 2 green balloons. How many balloons are there in all?
  24. 24.2 + 4 + 7 =
  25. 25.? + 5 = 6
  26. 26.There are 8 red crayons and 5 green crayons. How many crayons are there in all?
  27. 27.There are 5 yellow balls and 3 red balls. How many balls are there in all?
  28. 28.3 + 5 =
  29. 29.Farhan has 4 books and gets 9 books more. How many books does Farhan have now?
  30. 30.1 + 5 + 9 =
  31. 31.12 + 1 =
  32. 32.6 + 12 =
  33. 33.6 + 13 =
  34. 34.There are 10 red balloons and 8 yellow balloons. How many balloons are there in all?
  35. 35.There are 3 white balloons and 13 blue balloons. How many balloons are there in all?
  36. 36.4 + 13 =
  37. 37.Karan has 11 flowers and gets 1 flower more. How many flowers does Karan have now?
  38. 38.8 + 7 + 5 =
  39. 39.Tara has 7 balloons and gets 4 balloons more. How many balloons does Tara have now?
  40. 40.Farhan has 11 pencils and gets 4 pencils more. How many pencils does Farhan have now?

Answer key

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

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