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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 595 · 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.? + 9 = 16
  2. 2.Meera has 14 balls and gets 6 balls more. How many balls does Meera have now?
  3. 3.Zoya has 9 kites and gets 5 kites more. How many kites does Zoya have now?
  4. 4.3 + ? = 14
  5. 5.14 + 1 =
  6. 6.There are 7 red balls and 9 green balls. How many balls are there in all?
  7. 7.8 + 1 =
  8. 8.10 + 9 =
  9. 9.There are 4 pink flowers and 6 blue flowers. How many flowers are there in all?
  10. 10.? + 2 = 6
  11. 11.6 + 3 =
  12. 12.Dev has 6 bananas and gets 8 bananas more. How many bananas does Dev have now?
  13. 13.9 + 7 =
  14. 14.There are 2 white beads and 2 blue beads. How many beads are there in all?
  15. 15.5 + 8 + 4 =
  16. 16.Rohan has 8 books and gets 8 books more. How many books does Rohan have now?
  17. 17.There are 9 pink crayons and 10 green crayons. How many crayons are there in all?
  18. 18.6 + 3 + 8 =
  19. 19.Aditya has 4 mangoes and gets 13 mangoes more. How many mangoes does Aditya have now?
  20. 20.? + 2 = 8
  21. 21.Ishaan has 5 mangoes and gets 10 mangoes more. How many mangoes does Ishaan have now?
  22. 22.? + 8 = 15
  23. 23.9 + ? = 14
  24. 24.18 + 2 =
  25. 25.7 + 6 + 3 =
  26. 26.Dev has 5 balls and gets 1 ball more. How many balls does Dev have now?
  27. 27.3 + 1 + 9 =
  28. 28.? + 9 = 12
  29. 29.5 + ? = 18
  30. 30.Rohan has 3 bananas and gets 15 bananas more. How many bananas does Rohan have now?
  31. 31.There are 2 pink flowers and 14 red flowers. How many flowers are there in all?
  32. 32.There are 2 white beads and 12 blue beads. How many beads are there in all?
  33. 33.1 + 6 =
  34. 34.3 + ? = 5
  35. 35.Arjun has 4 crayons and gets 13 crayons more. How many crayons does Arjun have now?
  36. 36.? + 3 = 10
  37. 37.Sneha has 12 shells and gets 7 shells more. How many shells does Sneha have now?
  38. 38.There are 10 white kites and 5 red kites. How many kites are there in all?
  39. 39.14 + 6 =
  40. 40.Zoya has 4 books and gets 3 books more. How many books does Zoya have now?

Answer key

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

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