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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 252 · 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. 1.2 + ? = 5
  2. 2.1 + 10 =
  3. 3.? + 6 = 18
  4. 4.There are 8 white balloons and 7 pink balloons. How many balloons are there in all?
  5. 5.8 + 7 + 4 =
  6. 6.5 + 13 =
  7. 7.12 + ? = 20
  8. 8.Rahul has 3 shells and gets 2 shells more. How many shells does Rahul have now?
  9. 9.? + 5 = 16
  10. 10.2 + 2 + 12 =
  11. 11.Pooja has 2 mangoes and gets 17 mangoes more. How many mangoes does Pooja have now?
  12. 12.? + 1 = 4
  13. 13.There are 3 red crayons and 13 white crayons. How many crayons are there in all?
  14. 14.2 + 3 + 1 =
  15. 15.1 + 6 + 2 =
  16. 16.Sneha has 9 crayons and gets 8 crayons more. How many crayons does Sneha have now?
  17. 17.16 + 2 =
  18. 18.19 + 1 =
  19. 19.Meera has 12 balloons and gets 2 balloons more. How many balloons does Meera have now?
  20. 20.5 + 10 =
  21. 21.Tara has 9 bananas and gets 3 bananas more. How many bananas does Tara have now?
  22. 22.13 + 6 =
  23. 23.Manav has 3 laddoos and gets 3 laddoos more. How many laddoos does Manav have now?
  24. 24.4 + 3 =
  25. 25.There are 7 blue balloons and 4 pink balloons. How many balloons are there in all?
  26. 26.7 + 9 =
  27. 27.1 + 13 =
  28. 28.6 + 3 + 8 =
  29. 29.Farhan has 5 kites and gets 7 kites more. How many kites does Farhan have now?
  30. 30.8 + 4 + 5 =
  31. 31.Rohan has 4 laddoos and gets 1 laddoo more. How many laddoos does Rohan have now?
  32. 32.There are 6 yellow balloons and 12 white balloons. How many balloons are there in all?
  33. 33.Ananya has 11 flowers and gets 3 flowers more. How many flowers does Ananya have now?
  34. 34.There are 4 white beads and 8 yellow beads. How many beads are there in all?
  35. 35.There are 9 pink beads and 11 green beads. How many beads are there in all?
  36. 36.12 + 6 =
  37. 37.10 + ? = 20
  38. 38.1 + ? = 5
  39. 39.7 + 8 + 3 =
  40. 40.5 + 2 =

Answer key

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

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