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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 52 · 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. 1.5 + 2 + 1 =
  2. 2.There are 3 yellow beads and 6 red beads. How many beads are there in all?
  3. 3.Kavya has 7 bananas and gets 11 bananas more. How many bananas does Kavya have now?
  4. 4.7 + ? = 9
  5. 5.Aarav has 12 balls and gets 5 balls more. How many balls does Aarav have now?
  6. 6.There are 10 red balloons and 2 yellow balloons. How many balloons are there in all?
  7. 7.There are 10 white beads and 3 red beads. How many beads are there in all?
  8. 8.1 + 1 + 4 =
  9. 9.1 + 16 =
  10. 10.There are 6 white flowers and 7 red flowers. How many flowers are there in all?
  11. 11.19 + 1 =
  12. 12.4 + 8 =
  13. 13.There are 5 green flowers and 2 white flowers. How many flowers are there in all?
  14. 14.9 + ? = 10
  15. 15.12 + 1 =
  16. 16.Farhan has 2 shells and gets 9 shells more. How many shells does Farhan have now?
  17. 17.4 + 2 + 1 =
  18. 18.10 + 3 =
  19. 19.11 + 1 =
  20. 20.3 + 15 =
  21. 21.2 + 1 =
  22. 22.8 + 8 + 2 =
  23. 23.15 + ? = 18
  24. 24.There are 5 red flowers and 11 white flowers. How many flowers are there in all?
  25. 25.? + 14 = 15
  26. 26.10 + 2 =
  27. 27.1 + 9 =
  28. 28.1 + 1 + 16 =
  29. 29.3 + ? = 14
  30. 30.12 + ? = 17
  31. 31.Rohan has 3 marbles and gets 16 marbles more. How many marbles does Rohan have now?
  32. 32.8 + 3 + 3 =
  33. 33.Joseph has 4 marbles and gets 16 marbles more. How many marbles does Joseph have now?
  34. 34.4 + ? = 19
  35. 35.15 + 5 =
  36. 36.3 + 12 =
  37. 37.5 + 1 + 10 =
  38. 38.4 + 12 =
  39. 39.6 + 11 =
  40. 40.There are 3 yellow kites and 2 green kites. How many kites are there in all?

Answer key

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

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