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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 11 · 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. 1.1 + ? = 4
  2. 2.8 + ? = 12
  3. 3.Gurpreet has 8 balls and gets 8 balls more. How many balls does Gurpreet have now?
  4. 4.3 + 8 + 2 =
  5. 5.There are 3 blue kites and 8 yellow kites. How many kites are there in all?
  6. 6.Meera has 13 flowers and gets 2 flowers more. How many flowers does Meera have now?
  7. 7.4 + 5 + 8 =
  8. 8.14 + ? = 18
  9. 9.There are 8 yellow balloons and 8 white balloons. How many balloons are there in all?
  10. 10.12 + 7 =
  11. 11.Isha has 2 books and gets 1 book more. How many books does Isha have now?
  12. 12.Meera has 11 marbles and gets 7 marbles more. How many marbles does Meera have now?
  13. 13.There are 8 green kites and 2 pink kites. How many kites are there in all?
  14. 14.7 + 1 + 11 =
  15. 15.There are 12 yellow balls and 5 white balls. How many balls are there in all?
  16. 16.? + 18 = 19
  17. 17.There are 7 red beads and 5 green beads. How many beads are there in all?
  18. 18.18 + 1 =
  19. 19.There are 6 yellow crayons and 13 green crayons. How many crayons are there in all?
  20. 20.There are 4 green flowers and 8 blue flowers. How many flowers are there in all?
  21. 21.12 + 4 =
  22. 22.11 + 9 =
  23. 23.There are 8 pink balls and 12 blue balls. How many balls are there in all?
  24. 24.2 + 7 + 2 =
  25. 25.17 + 3 =
  26. 26.1 + ? = 3
  27. 27.Rahul has 5 shells and gets 11 shells more. How many shells does Rahul have now?
  28. 28.3 + ? = 6
  29. 29.? + 1 = 3
  30. 30.Zoya has 15 balloons and gets 3 balloons more. How many balloons does Zoya have now?
  31. 31.19 + 1 =
  32. 32.14 + 2 =
  33. 33.? + 3 = 8
  34. 34.Ananya has 9 flowers and gets 1 flower more. How many flowers does Ananya have now?
  35. 35.? + 13 = 14
  36. 36.Aditya has 4 balls and gets 6 balls more. How many balls does Aditya have now?
  37. 37.Arjun has 2 books and gets 14 books more. How many books does Arjun have now?
  38. 38.1 + 14 =
  39. 39.2 + 1 + 9 =
  40. 40.Dev has 4 balloons and gets 6 balloons more. How many balloons does Dev have now?

Answer key

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

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