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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 654 · 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.There are 4 yellow kites and 10 blue kites. How many kites are there in all?
  2. 2.3 + 8 + 8 =
  3. 3.There are 5 yellow crayons and 6 green crayons. How many crayons are there in all?
  4. 4.There are 3 blue flowers and 12 yellow flowers. How many flowers are there in all?
  5. 5.Kavya has 15 kites and gets 1 kite more. How many kites does Kavya have now?
  6. 6.Sneha has 10 balls and gets 8 balls more. How many balls does Sneha have now?
  7. 7.? + 2 = 6
  8. 8.? + 1 = 8
  9. 9.There are 12 pink balloons and 3 white balloons. How many balloons are there in all?
  10. 10.4 + ? = 5
  11. 11.? + 3 = 13
  12. 12.There are 9 green crayons and 6 blue crayons. How many crayons are there in all?
  13. 13.1 + 18 =
  14. 14.There are 6 blue kites and 13 red kites. How many kites are there in all?
  15. 15.9 + 2 =
  16. 16.5 + 12 =
  17. 17.Arjun has 7 marbles and gets 9 marbles more. How many marbles does Arjun have now?
  18. 18.There are 4 white balls and 4 blue balls. How many balls are there in all?
  19. 19.Meera has 4 bananas and gets 10 bananas more. How many bananas does Meera have now?
  20. 20.1 + 8 + 3 =
  21. 21.1 + 4 + 3 =
  22. 22.? + 3 = 5
  23. 23.Aditya has 8 books and gets 5 books more. How many books does Aditya have now?
  24. 24.8 + ? = 17
  25. 25.There are 10 blue beads and 2 yellow beads. How many beads are there in all?
  26. 26.There are 3 green balloons and 15 yellow balloons. How many balloons are there in all?
  27. 27.2 + 17 =
  28. 28.There are 8 pink balloons and 2 blue balloons. How many balloons are there in all?
  29. 29.There are 12 blue balls and 7 pink balls. How many balls are there in all?
  30. 30.1 + 5 + 7 =
  31. 31.There are 4 blue flowers and 8 white flowers. How many flowers are there in all?
  32. 32.3 + 4 + 10 =
  33. 33.2 + 3 + 7 =
  34. 34.There are 8 yellow crayons and 7 white crayons. How many crayons are there in all?
  35. 35.7 + 8 + 4 =
  36. 36.Ananya has 6 kites and gets 10 kites more. How many kites does Ananya have now?
  37. 37.6 + ? = 16
  38. 38.Kabir has 14 balloons and gets 5 balloons more. How many balloons does Kabir have now?
  39. 39.Kabir has 10 laddoos and gets 6 laddoos more. How many laddoos does Kabir have now?
  40. 40.2 + 9 =

Answer key

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

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