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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 558 · 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.Aarav has 15 marbles and gets 1 marble more. How many marbles does Aarav have now?
  2. 2.There are 3 red crayons and 5 green crayons. How many crayons are there in all?
  3. 3.Pooja has 4 laddoos and gets 10 laddoos more. How many laddoos does Pooja have now?
  4. 4.2 + 8 + 5 =
  5. 5.Pooja has 15 flowers and gets 1 flower more. How many flowers does Pooja have now?
  6. 6.15 + 3 =
  7. 7.4 + 5 + 1 =
  8. 8.Arjun has 4 flowers and gets 4 flowers more. How many flowers does Arjun have now?
  9. 9.? + 13 = 17
  10. 10.Gurpreet has 7 crayons and gets 6 crayons more. How many crayons does Gurpreet have now?
  11. 11.There are 5 white balls and 10 red balls. How many balls are there in all?
  12. 12.12 + 7 =
  13. 13.Rahul has 5 kites and gets 11 kites more. How many kites does Rahul have now?
  14. 14.2 + 4 + 10 =
  15. 15.1 + 6 + 4 =
  16. 16.There are 5 white balls and 5 yellow balls. How many balls are there in all?
  17. 17.Kabir has 14 pencils and gets 4 pencils more. How many pencils does Kabir have now?
  18. 18.2 + 2 + 8 =
  19. 19.Karan has 4 shells and gets 1 shell more. How many shells does Karan have now?
  20. 20.Arjun has 14 crayons and gets 5 crayons more. How many crayons does Arjun have now?
  21. 21.There are 9 pink balls and 4 red balls. How many balls are there in all?
  22. 22.4 + 1 + 12 =
  23. 23.7 + 3 + 1 =
  24. 24.There are 7 blue kites and 2 pink kites. How many kites are there in all?
  25. 25.4 + 14 =
  26. 26.Zoya has 2 shells and gets 8 shells more. How many shells does Zoya have now?
  27. 27.18 + 1 =
  28. 28.2 + 10 =
  29. 29.4 + 7 + 8 =
  30. 30.There are 9 yellow kites and 9 red kites. How many kites are there in all?
  31. 31.Arjun has 4 balloons and gets 3 balloons more. How many balloons does Arjun have now?
  32. 32.There are 7 pink kites and 12 red kites. How many kites are there in all?
  33. 33.Dev has 4 books and gets 3 books more. How many books does Dev have now?
  34. 34.14 + ? = 20
  35. 35.6 + 3 =
  36. 36.6 + 12 =
  37. 37.7 + ? = 13
  38. 38.There are 11 green balloons and 6 red balloons. How many balloons are there in all?
  39. 39.Sneha has 11 balls and gets 7 balls more. How many balls does Sneha have now?
  40. 40.4 + 2 + 2 =

Answer key

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

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