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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 555 · 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. 1.3 + 6 + 6 =
  2. 2.There are 5 pink crayons and 6 white crayons. How many crayons are there in all?
  3. 3.1 + 1 + 1 =
  4. 4.Kabir has 6 flowers and gets 3 flowers more. How many flowers does Kabir have now?
  5. 5.Ananya has 7 flowers and gets 9 flowers more. How many flowers does Ananya have now?
  6. 6.9 + ? = 10
  7. 7.There are 2 yellow balloons and 13 blue balloons. How many balloons are there in all?
  8. 8.1 + 2 + 11 =
  9. 9.3 + 14 =
  10. 10.There are 9 blue flowers and 2 yellow flowers. How many flowers are there in all?
  11. 11.? + 1 = 15
  12. 12.7 + 5 + 7 =
  13. 13.Arjun has 14 books and gets 6 books more. How many books does Arjun have now?
  14. 14.10 + 3 =
  15. 15.19 + 1 =
  16. 16.Priya has 15 pencils and gets 2 pencils more. How many pencils does Priya have now?
  17. 17.There are 7 blue balls and 11 green balls. How many balls are there in all?
  18. 18.7 + 6 =
  19. 19.Priya has 8 books and gets 1 book more. How many books does Priya have now?
  20. 20.There are 4 white balloons and 8 pink balloons. How many balloons are there in all?
  21. 21.3 + 2 + 13 =
  22. 22.There are 9 blue beads and 9 red beads. How many beads are there in all?
  23. 23.14 + 2 =
  24. 24.Gurpreet has 10 laddoos and gets 8 laddoos more. How many laddoos does Gurpreet have now?
  25. 25.3 + 8 =
  26. 26.There are 4 pink flowers and 6 yellow flowers. How many flowers are there in all?
  27. 27.3 + 4 =
  28. 28.Dev has 9 flowers and gets 3 flowers more. How many flowers does Dev have now?
  29. 29.2 + ? = 14
  30. 30.9 + 7 =
  31. 31.There are 12 red balloons and 8 yellow balloons. How many balloons are there in all?
  32. 32.There are 6 yellow kites and 7 red kites. How many kites are there in all?
  33. 33.3 + ? = 4
  34. 34.2 + 3 + 12 =
  35. 35.4 + 6 + 2 =
  36. 36.? + 7 = 12
  37. 37.There are 9 green balls and 3 yellow balls. How many balls are there in all?
  38. 38.Zoya has 7 books and gets 6 books more. How many books does Zoya have now?
  39. 39.There are 10 white beads and 9 yellow beads. How many beads are there in all?
  40. 40.15 + ? = 20

Answer key

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

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