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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 142 · 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.Ishaan has 6 flowers and gets 9 flowers more. How many flowers does Ishaan have now?
  2. 2.1 + 1 + 9 =
  3. 3.There are 2 blue kites and 15 yellow kites. How many kites are there in all?
  4. 4.1 + ? = 7
  5. 5.? + 16 = 17
  6. 6.There are 3 white kites and 11 yellow kites. How many kites are there in all?
  7. 7.There are 5 yellow flowers and 14 green flowers. How many flowers are there in all?
  8. 8.Aarav has 3 balloons and gets 6 balloons more. How many balloons does Aarav have now?
  9. 9.1 + 2 =
  10. 10.3 + 11 =
  11. 11.Farhan has 6 balloons and gets 13 balloons more. How many balloons does Farhan have now?
  12. 12.? + 6 = 14
  13. 13.Kavya has 12 bananas and gets 3 bananas more. How many bananas does Kavya have now?
  14. 14.3 + 5 =
  15. 15.12 + 8 =
  16. 16.14 + 3 =
  17. 17.Joseph has 5 marbles and gets 1 marble more. How many marbles does Joseph have now?
  18. 18.? + 2 = 15
  19. 19.Manav has 13 mangoes and gets 4 mangoes more. How many mangoes does Manav have now?
  20. 20.6 + 2 + 4 =
  21. 21.Manav has 2 bananas and gets 3 bananas more. How many bananas does Manav have now?
  22. 22.7 + 2 + 9 =
  23. 23.5 + 3 + 10 =
  24. 24.Rahul has 9 kites and gets 5 kites more. How many kites does Rahul have now?
  25. 25.5 + 10 =
  26. 26.4 + 4 =
  27. 27.1 + ? = 15
  28. 28.7 + 4 =
  29. 29.17 + 2 =
  30. 30.? + 7 = 10
  31. 31.There are 3 pink kites and 3 blue kites. How many kites are there in all?
  32. 32.4 + 2 + 12 =
  33. 33.7 + 3 + 6 =
  34. 34.6 + 4 + 8 =
  35. 35.7 + 7 + 6 =
  36. 36.Aarav has 4 balls and gets 6 balls more. How many balls does Aarav have now?
  37. 37.? + 12 = 13
  38. 38.There are 7 yellow flowers and 8 pink flowers. How many flowers are there in all?
  39. 39.1 + 6 + 6 =
  40. 40.16 + 2 =

Answer key

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

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