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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 769 · 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. 1.1 + 6 + 8 =
  2. 2.Vivaan has 3 laddoos and gets 3 laddoos more. How many laddoos does Vivaan have now?
  3. 3.6 + 3 + 7 =
  4. 4.Vivaan has 5 bananas and gets 4 bananas more. How many bananas does Vivaan have now?
  5. 5.Ishaan has 2 flowers and gets 8 flowers more. How many flowers does Ishaan have now?
  6. 6.Tara has 10 balls and gets 10 balls more. How many balls does Tara have now?
  7. 7.7 + 11 =
  8. 8.5 + 8 + 2 =
  9. 9.7 + 9 =
  10. 10.? + 4 = 5
  11. 11.1 + 1 + 18 =
  12. 12.Vivaan has 4 marbles and gets 4 marbles more. How many marbles does Vivaan have now?
  13. 13.4 + ? = 10
  14. 14.14 + 3 =
  15. 15.Sneha has 10 laddoos and gets 1 laddoo more. How many laddoos does Sneha have now?
  16. 16.There are 10 green kites and 9 red kites. How many kites are there in all?
  17. 17.2 + ? = 12
  18. 18.3 + 2 + 1 =
  19. 19.5 + 13 =
  20. 20.There are 8 pink balloons and 6 white balloons. How many balloons are there in all?
  21. 21.Gurpreet has 11 books and gets 4 books more. How many books does Gurpreet have now?
  22. 22.14 + 1 =
  23. 23.2 + 11 =
  24. 24.7 + ? = 12
  25. 25.11 + ? = 14
  26. 26.? + 9 = 20
  27. 27.4 + 5 + 1 =
  28. 28.6 + 1 + 10 =
  29. 29.6 + ? = 14
  30. 30.7 + 3 =
  31. 31.6 + 5 + 1 =
  32. 32.11 + 2 =
  33. 33.Riya has 11 mangoes and gets 3 mangoes more. How many mangoes does Riya have now?
  34. 34.11 + ? = 16
  35. 35.There are 8 pink balls and 2 red balls. How many balls are there in all?
  36. 36.There are 8 blue beads and 8 white beads. How many beads are there in all?
  37. 37.1 + ? = 5
  38. 38.3 + 3 + 6 =
  39. 39.18 + 2 =
  40. 40.There are 5 white flowers and 11 green flowers. How many flowers are there in all?

Answer key

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

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