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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 849 · 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 = 7
  2. 2.Kabir has 11 pencils and gets 7 pencils more. How many pencils does Kabir have now?
  3. 3.There are 12 yellow flowers and 2 green flowers. How many flowers are there in all?
  4. 4.16 + 4 =
  5. 5.Joseph has 7 pencils and gets 2 pencils more. How many pencils does Joseph have now?
  6. 6.5 + 2 =
  7. 7.There are 6 white beads and 7 green beads. How many beads are there in all?
  8. 8.? + 9 = 10
  9. 9.5 + 3 + 9 =
  10. 10.8 + ? = 14
  11. 11.There are 11 yellow balls and 4 blue balls. How many balls are there in all?
  12. 12.9 + 2 =
  13. 13.There are 9 green beads and 6 yellow beads. How many beads are there in all?
  14. 14.There are 7 white crayons and 2 yellow crayons. How many crayons are there in all?
  15. 15.There are 9 blue beads and 2 pink beads. How many beads are there in all?
  16. 16.Meera has 5 marbles and gets 9 marbles more. How many marbles does Meera have now?
  17. 17.There are 3 pink beads and 7 white beads. How many beads are there in all?
  18. 18.Arjun has 14 kites and gets 2 kites more. How many kites does Arjun have now?
  19. 19.1 + ? = 11
  20. 20.There are 3 blue flowers and 16 red flowers. How many flowers are there in all?
  21. 21.? + 1 = 4
  22. 22.There are 5 yellow balls and 13 pink balls. How many balls are there in all?
  23. 23.There are 11 blue balls and 6 green balls. How many balls are there in all?
  24. 24.Aarav has 14 crayons and gets 1 crayon more. How many crayons does Aarav have now?
  25. 25.There are 8 green balls and 3 pink balls. How many balls are there in all?
  26. 26.There are 4 red kites and 14 blue kites. How many kites are there in all?
  27. 27.18 + 1 =
  28. 28.4 + 2 + 13 =
  29. 29.Dev has 11 flowers and gets 3 flowers more. How many flowers does Dev have now?
  30. 30.Priya has 14 kites and gets 4 kites more. How many kites does Priya have now?
  31. 31.There are 11 green beads and 2 red beads. How many beads are there in all?
  32. 32.8 + 11 =
  33. 33.18 + 2 =
  34. 34.15 + 3 =
  35. 35.Aditya has 14 shells and gets 6 shells more. How many shells does Aditya have now?
  36. 36.Riya has 9 pencils and gets 1 pencil more. How many pencils does Riya have now?
  37. 37.7 + 6 + 1 =
  38. 38.Kavya has 6 books and gets 6 books more. How many books does Kavya have now?
  39. 39.12 + ? = 16
  40. 40.2 + 11 =

Answer key

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

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