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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 839 · 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.Joseph has 9 balloons and gets 6 balloons more. How many balloons does Joseph have now?
  2. 2.16 + 3 =
  3. 3.19 + 1 =
  4. 4.Aditya has 10 balls and gets 1 ball more. How many balls does Aditya have now?
  5. 5.6 + 10 =
  6. 6.? + 1 = 18
  7. 7.14 + 2 =
  8. 8.Meera has 9 marbles and gets 10 marbles more. How many marbles does Meera have now?
  9. 9.? + 1 = 4
  10. 10.1 + 3 + 5 =
  11. 11.2 + ? = 10
  12. 12.4 + 1 =
  13. 13.Ishaan has 2 bananas and gets 2 bananas more. How many bananas does Ishaan have now?
  14. 14.1 + 4 + 1 =
  15. 15.3 + 4 + 5 =
  16. 16.There are 3 pink beads and 11 red beads. How many beads are there in all?
  17. 17.There are 8 blue crayons and 7 yellow crayons. How many crayons are there in all?
  18. 18.16 + 4 =
  19. 19.There are 4 green kites and 15 red kites. How many kites are there in all?
  20. 20.4 + 2 =
  21. 21.Nisha has 8 shells and gets 6 shells more. How many shells does Nisha have now?
  22. 22.8 + 5 + 4 =
  23. 23.8 + 4 =
  24. 24.? + 2 = 6
  25. 25.13 + 2 =
  26. 26.There are 10 pink beads and 8 red beads. How many beads are there in all?
  27. 27.Manav has 5 balls and gets 13 balls more. How many balls does Manav have now?
  28. 28.There are 6 pink balloons and 5 yellow balloons. How many balloons are there in all?
  29. 29.12 + 3 =
  30. 30.8 + 11 =
  31. 31.Meera has 12 bananas and gets 8 bananas more. How many bananas does Meera have now?
  32. 32.Priya has 7 pencils and gets 4 pencils more. How many pencils does Priya have now?
  33. 33.2 + 12 =
  34. 34.There are 8 red crayons and 2 blue crayons. How many crayons are there in all?
  35. 35.? + 2 = 5
  36. 36.12 + 1 =
  37. 37.8 + ? = 14
  38. 38.Arjun has 15 laddoos and gets 2 laddoos more. How many laddoos does Arjun have now?
  39. 39.There are 2 blue balloons and 16 red balloons. How many balloons are there in all?
  40. 40.6 + 2 + 10 =

Answer key

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

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