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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 514 · 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 13 mangoes and gets 2 mangoes more. How many mangoes does Rahul have now?
  2. 2.? + 4 = 5
  3. 3.12 + ? = 18
  4. 4.1 + 8 + 1 =
  5. 5.Ananya has 4 pencils and gets 1 pencil more. How many pencils does Ananya have now?
  6. 6.There are 9 pink beads and 3 yellow beads. How many beads are there in all?
  7. 7.9 + ? = 13
  8. 8.Tara has 15 pencils and gets 4 pencils more. How many pencils does Tara have now?
  9. 9.? + 2 = 8
  10. 10.? + 5 = 20
  11. 11.Nisha has 11 mangoes and gets 2 mangoes more. How many mangoes does Nisha have now?
  12. 12.2 + 8 =
  13. 13.Manav has 4 shells and gets 8 shells more. How many shells does Manav have now?
  14. 14.Lakshmi has 9 balls and gets 10 balls more. How many balls does Lakshmi have now?
  15. 15.? + 8 = 9
  16. 16.5 + 8 + 2 =
  17. 17.5 + 10 =
  18. 18.There are 9 white kites and 3 pink kites. How many kites are there in all?
  19. 19.There are 6 yellow flowers and 6 blue flowers. How many flowers are there in all?
  20. 20.5 + 1 + 4 =
  21. 21.1 + ? = 8
  22. 22.1 + ? = 6
  23. 23.? + 1 = 15
  24. 24.2 + 16 =
  25. 25.Joseph has 14 flowers and gets 2 flowers more. How many flowers does Joseph have now?
  26. 26.There are 12 yellow flowers and 6 white flowers. How many flowers are there in all?
  27. 27.5 + ? = 10
  28. 28.5 + 3 =
  29. 29.Arjun has 3 balls and gets 6 balls more. How many balls does Arjun have now?
  30. 30.There are 9 blue beads and 4 yellow beads. How many beads are there in all?
  31. 31.18 + 1 =
  32. 32.Kabir has 9 mangoes and gets 2 mangoes more. How many mangoes does Kabir have now?
  33. 33.19 + 1 =
  34. 34.There are 7 pink beads and 6 red beads. How many beads are there in all?
  35. 35.3 + ? = 6
  36. 36.Saanvi has 8 shells and gets 12 shells more. How many shells does Saanvi have now?
  37. 37.3 + 8 + 9 =
  38. 38.There are 9 blue kites and 6 white kites. How many kites are there in all?
  39. 39.8 + 4 =
  40. 40.There are 3 white kites and 17 blue kites. How many kites are there in all?

Answer key

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

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