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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 762 · 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.Rahul has 9 flowers and gets 8 flowers more. How many flowers does Rahul have now?
  2. 2.7 + 2 =
  3. 3.8 + 9 =
  4. 4.8 + 6 =
  5. 5.11 + 8 =
  6. 6.11 + 7 =
  7. 7.2 + 3 =
  8. 8.8 + 3 + 3 =
  9. 9.1 + 7 + 3 =
  10. 10.There are 6 blue beads and 7 red beads. How many beads are there in all?
  11. 11.16 + 2 =
  12. 12.1 + ? = 7
  13. 13.12 + 5 =
  14. 14.5 + ? = 20
  15. 15.12 + 3 =
  16. 16.There are 5 green balls and 6 red balls. How many balls are there in all?
  17. 17.Aditya has 13 pencils and gets 7 pencils more. How many pencils does Aditya have now?
  18. 18.2 + 2 =
  19. 19.There are 2 pink kites and 4 yellow kites. How many kites are there in all?
  20. 20.3 + 12 =
  21. 21.12 + 8 =
  22. 22.14 + 6 =
  23. 23.There are 3 green flowers and 8 yellow flowers. How many flowers are there in all?
  24. 24.6 + 3 + 2 =
  25. 25.Lakshmi has 2 pencils and gets 3 pencils more. How many pencils does Lakshmi have now?
  26. 26.7 + ? = 8
  27. 27.16 + 1 =
  28. 28.Rahul has 3 crayons and gets 3 crayons more. How many crayons does Rahul have now?
  29. 29.Saanvi has 2 pencils and gets 13 pencils more. How many pencils does Saanvi have now?
  30. 30.? + 8 = 14
  31. 31.13 + 5 =
  32. 32.? + 7 = 13
  33. 33.18 + 1 =
  34. 34.3 + 2 + 10 =
  35. 35.There are 4 red flowers and 15 white flowers. How many flowers are there in all?
  36. 36.Tara has 15 crayons and gets 3 crayons more. How many crayons does Tara have now?
  37. 37.7 + 12 =
  38. 38.Riya has 4 kites and gets 5 kites more. How many kites does Riya have now?
  39. 39.Rahul has 4 laddoos and gets 7 laddoos more. How many laddoos does Rahul have now?
  40. 40.? + 7 = 14

Answer key

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

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