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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 813 · 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. 1.16 + 4 =
  2. 2.There are 3 blue flowers and 16 yellow flowers. How many flowers are there in all?
  3. 3.Arjun has 14 mangoes and gets 4 mangoes more. How many mangoes does Arjun have now?
  4. 4.There are 9 yellow balloons and 3 red balloons. How many balloons are there in all?
  5. 5.7 + 1 =
  6. 6.Zoya has 2 kites and gets 13 kites more. How many kites does Zoya have now?
  7. 7.13 + ? = 15
  8. 8.Tara has 5 pencils and gets 9 pencils more. How many pencils does Tara have now?
  9. 9.6 + 8 + 3 =
  10. 10.6 + 6 + 2 =
  11. 11.4 + ? = 7
  12. 12.Gurpreet has 15 pencils and gets 1 pencil more. How many pencils does Gurpreet have now?
  13. 13.6 + 5 + 2 =
  14. 14.5 + 9 =
  15. 15.3 + 3 =
  16. 16.8 + 7 + 5 =
  17. 17.Riya has 5 balloons and gets 13 balloons more. How many balloons does Riya have now?
  18. 18.There are 2 yellow balloons and 11 pink balloons. How many balloons are there in all?
  19. 19.5 + ? = 20
  20. 20.3 + 7 + 9 =
  21. 21.7 + ? = 10
  22. 22.6 + 6 + 8 =
  23. 23.6 + 14 =
  24. 24.6 + 6 + 7 =
  25. 25.Kabir has 9 mangoes and gets 9 mangoes more. How many mangoes does Kabir have now?
  26. 26.15 + 4 =
  27. 27.12 + 5 =
  28. 28.Joseph has 4 bananas and gets 3 bananas more. How many bananas does Joseph have now?
  29. 29.? + 11 = 17
  30. 30.There are 11 red balls and 4 blue balls. How many balls are there in all?
  31. 31.13 + 6 =
  32. 32.Riya has 14 balls and gets 2 balls more. How many balls does Riya have now?
  33. 33.7 + 6 + 3 =
  34. 34.7 + 4 =
  35. 35.There are 6 blue kites and 5 pink kites. How many kites are there in all?
  36. 36.9 + 4 =
  37. 37.? + 12 = 13
  38. 38.2 + 1 + 5 =
  39. 39.16 + 2 =
  40. 40.Pooja has 3 pencils and gets 16 pencils more. How many pencils does Pooja have now?

Answer key

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

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