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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 14 · 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. 1.2 + 18 =
  2. 2.Karan has 6 marbles and gets 5 marbles more. How many marbles does Karan have now?
  3. 3.3 + 7 + 5 =
  4. 4.7 + 4 + 4 =
  5. 5.There are 2 white kites and 7 yellow kites. How many kites are there in all?
  6. 6.There are 3 yellow balloons and 2 white balloons. How many balloons are there in all?
  7. 7.5 + 7 + 5 =
  8. 8.2 + ? = 4
  9. 9.7 + ? = 10
  10. 10.? + 8 = 15
  11. 11.8 + 12 =
  12. 12.3 + ? = 10
  13. 13.Gurpreet has 6 marbles and gets 5 marbles more. How many marbles does Gurpreet have now?
  14. 14.4 + ? = 7
  15. 15.Tara has 11 pencils and gets 1 pencil more. How many pencils does Tara have now?
  16. 16.There are 7 pink crayons and 9 green crayons. How many crayons are there in all?
  17. 17.Ananya has 9 shells and gets 7 shells more. How many shells does Ananya have now?
  18. 18.14 + 2 =
  19. 19.Kavya has 9 bananas and gets 8 bananas more. How many bananas does Kavya have now?
  20. 20.There are 8 blue balloons and 7 red balloons. How many balloons are there in all?
  21. 21.17 + 1 =
  22. 22.11 + 8 =
  23. 23.Vivaan has 10 laddoos and gets 7 laddoos more. How many laddoos does Vivaan have now?
  24. 24.? + 6 = 14
  25. 25.5 + 8 =
  26. 26.There are 2 green balloons and 15 yellow balloons. How many balloons are there in all?
  27. 27.Kabir has 14 pencils and gets 2 pencils more. How many pencils does Kabir have now?
  28. 28.Sneha has 14 mangoes and gets 3 mangoes more. How many mangoes does Sneha have now?
  29. 29.? + 7 = 18
  30. 30.9 + 6 =
  31. 31.Aarav has 8 books and gets 12 books more. How many books does Aarav have now?
  32. 32.2 + 3 + 5 =
  33. 33.6 + 13 =
  34. 34.6 + 8 =
  35. 35.18 + 1 =
  36. 36.16 + 1 =
  37. 37.13 + 1 =
  38. 38.Pooja has 9 balls and gets 4 balls more. How many balls does Pooja have now?
  39. 39.Karan has 9 pencils and gets 4 pencils more. How many pencils does Karan have now?
  40. 40.Saanvi has 10 bananas and gets 1 banana more. How many bananas does Saanvi have now?

Answer key

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

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