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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 385 · 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. 1.16 + 1 =
  2. 2.There are 12 pink flowers and 6 blue flowers. How many flowers are there in all?
  3. 3.2 + 6 + 12 =
  4. 4.Isha has 15 balloons and gets 2 balloons more. How many balloons does Isha have now?
  5. 5.3 + ? = 17
  6. 6.There are 5 pink flowers and 15 yellow flowers. How many flowers are there in all?
  7. 7.2 + 7 + 10 =
  8. 8.2 + ? = 3
  9. 9.? + 2 = 3
  10. 10.Sneha has 11 balloons and gets 6 balloons more. How many balloons does Sneha have now?
  11. 11.There are 3 green crayons and 15 white crayons. How many crayons are there in all?
  12. 12.10 + ? = 16
  13. 13.1 + ? = 4
  14. 14.12 + 8 =
  15. 15.3 + 6 + 8 =
  16. 16.Saanvi has 12 flowers and gets 2 flowers more. How many flowers does Saanvi have now?
  17. 17.? + 7 = 16
  18. 18.17 + 1 =
  19. 19.4 + 2 + 11 =
  20. 20.There are 5 white balls and 6 blue balls. How many balls are there in all?
  21. 21.There are 11 pink kites and 5 yellow kites. How many kites are there in all?
  22. 22.4 + 5 + 1 =
  23. 23.Aarav has 13 bananas and gets 7 bananas more. How many bananas does Aarav have now?
  24. 24.3 + ? = 5
  25. 25.1 + 12 =
  26. 26.4 + 2 + 8 =
  27. 27.1 + ? = 6
  28. 28.4 + 9 =
  29. 29.Manav has 12 mangoes and gets 8 mangoes more. How many mangoes does Manav have now?
  30. 30.Manav has 11 crayons and gets 5 crayons more. How many crayons does Manav have now?
  31. 31.1 + 18 =
  32. 32.Rahul has 11 balloons and gets 3 balloons more. How many balloons does Rahul have now?
  33. 33.8 + 8 + 1 =
  34. 34.6 + 6 + 6 =
  35. 35.16 + 2 =
  36. 36.6 + 8 + 3 =
  37. 37.There are 5 blue flowers and 5 yellow flowers. How many flowers are there in all?
  38. 38.3 + ? = 8
  39. 39.There are 10 blue balloons and 4 yellow balloons. How many balloons are there in all?
  40. 40.Farhan has 4 laddoos and gets 2 laddoos more. How many laddoos does Farhan have now?

Answer key

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

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