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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 811 · 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. 1.3 + 11 =
  2. 2.6 + 6 + 6 =
  3. 3.2 + 4 + 2 =
  4. 4.There are 5 red balls and 4 green balls. How many balls are there in all?
  5. 5.Lakshmi has 11 balls and gets 6 balls more. How many balls does Lakshmi have now?
  6. 6.3 + 1 =
  7. 7.7 + 2 + 3 =
  8. 8.There are 4 yellow crayons and 9 pink crayons. How many crayons are there in all?
  9. 9.Gurpreet has 10 balls and gets 2 balls more. How many balls does Gurpreet have now?
  10. 10.Priya has 11 crayons and gets 5 crayons more. How many crayons does Priya have now?
  11. 11.4 + 11 =
  12. 12.Sneha has 4 bananas and gets 12 bananas more. How many bananas does Sneha have now?
  13. 13.1 + 6 + 4 =
  14. 14.16 + 3 =
  15. 15.4 + 1 + 4 =
  16. 16.8 + 2 + 7 =
  17. 17.13 + 4 =
  18. 18.? + 15 = 16
  19. 19.Rohan has 8 kites and gets 7 kites more. How many kites does Rohan have now?
  20. 20.7 + 1 =
  21. 21.10 + ? = 16
  22. 22.There are 10 red balls and 7 blue balls. How many balls are there in all?
  23. 23.There are 4 white kites and 6 red kites. How many kites are there in all?
  24. 24.Rahul has 5 balls and gets 8 balls more. How many balls does Rahul have now?
  25. 25.12 + 7 =
  26. 26.Vivaan has 4 bananas and gets 6 bananas more. How many bananas does Vivaan have now?
  27. 27.There are 6 pink flowers and 6 blue flowers. How many flowers are there in all?
  28. 28.Diya has 4 kites and gets 13 kites more. How many kites does Diya have now?
  29. 29.There are 10 yellow crayons and 4 pink crayons. How many crayons are there in all?
  30. 30.18 + 1 =
  31. 31.12 + 2 =
  32. 32.Karan has 8 books and gets 2 books more. How many books does Karan have now?
  33. 33.Gurpreet has 14 kites and gets 4 kites more. How many kites does Gurpreet have now?
  34. 34.Rahul has 14 laddoos and gets 1 laddoo more. How many laddoos does Rahul have now?
  35. 35.There are 9 white crayons and 10 yellow crayons. How many crayons are there in all?
  36. 36.There are 9 blue beads and 7 green beads. How many beads are there in all?
  37. 37.6 + 5 =
  38. 38.There are 9 white balls and 4 red balls. How many balls are there in all?
  39. 39.8 + 2 + 3 =
  40. 40.16 + 4 =

Answer key

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

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