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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 900 · 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.Tara has 5 balls and gets 3 balls more. How many balls does Tara have now?
  2. 2.There are 4 yellow beads and 12 blue beads. How many beads are there in all?
  3. 3.Rohan has 3 mangoes and gets 4 mangoes more. How many mangoes does Rohan have now?
  4. 4.? + 14 = 19
  5. 5.5 + ? = 6
  6. 6.There are 3 blue beads and 2 red beads. How many beads are there in all?
  7. 7.8 + ? = 11
  8. 8.1 + 5 + 4 =
  9. 9.There are 4 pink balloons and 9 red balloons. How many balloons are there in all?
  10. 10.4 + ? = 7
  11. 11.2 + 4 + 10 =
  12. 12.There are 8 blue balls and 5 pink balls. How many balls are there in all?
  13. 13.12 + ? = 14
  14. 14.3 + 7 + 6 =
  15. 15.14 + 6 =
  16. 16.1 + 1 + 16 =
  17. 17.8 + 1 + 9 =
  18. 18.4 + 4 =
  19. 19.There are 3 yellow balloons and 17 pink balloons. How many balloons are there in all?
  20. 20.17 + 3 =
  21. 21.Aditya has 8 shells and gets 3 shells more. How many shells does Aditya have now?
  22. 22.? + 3 = 7
  23. 23.3 + 5 + 11 =
  24. 24.? + 11 = 12
  25. 25.There are 9 pink balloons and 7 white balloons. How many balloons are there in all?
  26. 26.There are 10 green crayons and 7 white crayons. How many crayons are there in all?
  27. 27.14 + ? = 18
  28. 28.15 + ? = 16
  29. 29.Zoya has 14 balls and gets 5 balls more. How many balls does Zoya have now?
  30. 30.Arjun has 3 books and gets 15 books more. How many books does Arjun have now?
  31. 31.3 + 4 =
  32. 32.5 + 13 =
  33. 33.13 + ? = 17
  34. 34.Saanvi has 8 flowers and gets 8 flowers more. How many flowers does Saanvi have now?
  35. 35.There are 4 red balloons and 13 white balloons. How many balloons are there in all?
  36. 36.4 + 8 + 1 =
  37. 37.1 + 5 + 3 =
  38. 38.1 + 5 + 7 =
  39. 39.There are 8 red beads and 2 blue beads. How many beads are there in all?
  40. 40.There are 8 green balloons and 2 yellow balloons. How many balloons are there in all?

Answer key

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

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