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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 259 · 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. 1.12 + 5 =
  2. 2.Aditya has 2 mangoes and gets 7 mangoes more. How many mangoes does Aditya have now?
  3. 3.Gurpreet has 9 crayons and gets 7 crayons more. How many crayons does Gurpreet have now?
  4. 4.1 + ? = 6
  5. 5.Sneha has 15 marbles and gets 1 marble more. How many marbles does Sneha have now?
  6. 6.18 + 1 =
  7. 7.? + 9 = 16
  8. 8.2 + 8 + 7 =
  9. 9.Gurpreet has 4 pencils and gets 3 pencils more. How many pencils does Gurpreet have now?
  10. 10.There are 7 pink balls and 7 blue balls. How many balls are there in all?
  11. 11.7 + ? = 11
  12. 12.? + 1 = 7
  13. 13.1 + 14 =
  14. 14.8 + 6 =
  15. 15.16 + 3 =
  16. 16.? + 5 = 20
  17. 17.7 + 6 + 1 =
  18. 18.There are 3 blue flowers and 8 pink flowers. How many flowers are there in all?
  19. 19.Nisha has 15 mangoes and gets 2 mangoes more. How many mangoes does Nisha have now?
  20. 20.17 + 1 =
  21. 21.1 + 13 =
  22. 22.Arjun has 5 laddoos and gets 8 laddoos more. How many laddoos does Arjun have now?
  23. 23.? + 3 = 18
  24. 24.Ananya has 3 books and gets 11 books more. How many books does Ananya have now?
  25. 25.Riya has 10 balloons and gets 2 balloons more. How many balloons does Riya have now?
  26. 26.7 + 7 =
  27. 27.5 + 3 + 6 =
  28. 28.? + 6 = 15
  29. 29.There are 5 green kites and 13 blue kites. How many kites are there in all?
  30. 30.8 + 5 =
  31. 31.19 + 1 =
  32. 32.There are 11 green balloons and 4 yellow balloons. How many balloons are there in all?
  33. 33.1 + 6 =
  34. 34.3 + ? = 7
  35. 35.Meera has 7 flowers and gets 3 flowers more. How many flowers does Meera have now?
  36. 36.There are 12 green flowers and 5 yellow flowers. How many flowers are there in all?
  37. 37.14 + 2 =
  38. 38.5 + 9 =
  39. 39.3 + ? = 4
  40. 40.Riya has 5 crayons and gets 15 crayons more. How many crayons does Riya have now?

Answer key

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

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