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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 758 · 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 6 pink balloons and 9 white balloons. How many balloons are there in all?
  2. 2.3 + 8 + 2 =
  3. 3.1 + ? = 8
  4. 4.There are 5 blue beads and 11 yellow beads. How many beads are there in all?
  5. 5.18 + 1 =
  6. 6.5 + ? = 6
  7. 7.3 + 6 + 11 =
  8. 8.Kavya has 7 flowers and gets 9 flowers more. How many flowers does Kavya have now?
  9. 9.Sneha has 6 kites and gets 4 kites more. How many kites does Sneha have now?
  10. 10.There are 5 white flowers and 7 red flowers. How many flowers are there in all?
  11. 11.? + 9 = 11
  12. 12.Aarav has 9 kites and gets 6 kites more. How many kites does Aarav have now?
  13. 13.7 + 8 + 3 =
  14. 14.Aditya has 8 books and gets 12 books more. How many books does Aditya have now?
  15. 15.6 + ? = 9
  16. 16.Riya has 3 laddoos and gets 14 laddoos more. How many laddoos does Riya have now?
  17. 17.? + 17 = 18
  18. 18.11 + 5 =
  19. 19.5 + 3 + 3 =
  20. 20.5 + 4 + 5 =
  21. 21.There are 12 red balls and 8 green balls. How many balls are there in all?
  22. 22.8 + 2 + 9 =
  23. 23.Farhan has 6 books and gets 6 books more. How many books does Farhan have now?
  24. 24.Kabir has 2 shells and gets 1 shell more. How many shells does Kabir have now?
  25. 25.Diya has 11 crayons and gets 2 crayons more. How many crayons does Diya have now?
  26. 26.? + 8 = 18
  27. 27.14 + 1 =
  28. 28.13 + 3 =
  29. 29.? + 6 = 12
  30. 30.Meera has 8 kites and gets 10 kites more. How many kites does Meera have now?
  31. 31.? + 4 = 6
  32. 32.? + 1 = 6
  33. 33.Zoya has 10 crayons and gets 1 crayon more. How many crayons does Zoya have now?
  34. 34.Kavya has 15 pencils and gets 1 pencil more. How many pencils does Kavya have now?
  35. 35.Ananya has 7 laddoos and gets 7 laddoos more. How many laddoos does Ananya have now?
  36. 36.Arjun has 7 flowers and gets 1 flower more. How many flowers does Arjun have now?
  37. 37.12 + 4 =
  38. 38.4 + 11 =
  39. 39.Priya has 7 balls and gets 3 balls more. How many balls does Priya have now?
  40. 40.3 + 12 =

Answer key

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

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