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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 804 · 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. 1.9 + 7 =
  2. 2.Vivaan has 11 marbles and gets 6 marbles more. How many marbles does Vivaan have now?
  3. 3.6 + 4 + 4 =
  4. 4.Aarav has 13 kites and gets 4 kites more. How many kites does Aarav have now?
  5. 5.Gurpreet has 7 mangoes and gets 7 mangoes more. How many mangoes does Gurpreet have now?
  6. 6.1 + 7 =
  7. 7.? + 7 = 17
  8. 8.There are 11 yellow flowers and 4 blue flowers. How many flowers are there in all?
  9. 9.5 + 5 + 2 =
  10. 10.6 + 9 =
  11. 11.? + 5 = 13
  12. 12.Ananya has 3 balloons and gets 9 balloons more. How many balloons does Ananya have now?
  13. 13.Tara has 2 shells and gets 11 shells more. How many shells does Tara have now?
  14. 14.Rahul has 11 pencils and gets 5 pencils more. How many pencils does Rahul have now?
  15. 15.There are 11 red balloons and 6 pink balloons. How many balloons are there in all?
  16. 16.Isha has 6 shells and gets 5 shells more. How many shells does Isha have now?
  17. 17.Ishaan has 14 books and gets 2 books more. How many books does Ishaan have now?
  18. 18.6 + 1 + 6 =
  19. 19.There are 7 pink kites and 4 green kites. How many kites are there in all?
  20. 20.There are 4 green beads and 5 pink beads. How many beads are there in all?
  21. 21.? + 1 = 8
  22. 22.14 + 1 =
  23. 23.Ishaan has 8 balloons and gets 4 balloons more. How many balloons does Ishaan have now?
  24. 24.13 + ? = 17
  25. 25.Ananya has 11 crayons and gets 3 crayons more. How many crayons does Ananya have now?
  26. 26.Joseph has 10 balloons and gets 1 balloon more. How many balloons does Joseph have now?
  27. 27.? + 5 = 15
  28. 28.Kabir has 13 balloons and gets 2 balloons more. How many balloons does Kabir have now?
  29. 29.Kavya has 9 shells and gets 11 shells more. How many shells does Kavya have now?
  30. 30.4 + 15 =
  31. 31.Riya has 9 mangoes and gets 5 mangoes more. How many mangoes does Riya have now?
  32. 32.There are 3 white beads and 3 pink beads. How many beads are there in all?
  33. 33.There are 3 white balls and 4 pink balls. How many balls are there in all?
  34. 34.? + 1 = 3
  35. 35.There are 9 blue kites and 3 pink kites. How many kites are there in all?
  36. 36.1 + 8 + 8 =
  37. 37.Aarav has 2 books and gets 7 books more. How many books does Aarav have now?
  38. 38.Lakshmi has 5 pencils and gets 3 pencils more. How many pencils does Lakshmi have now?
  39. 39.5 + 8 =
  40. 40.16 + 1 =

Answer key

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

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