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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 694 · 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 + 1 =
  2. 2.2 + ? = 12
  3. 3.2 + 4 + 2 =
  4. 4.? + 6 = 17
  5. 5.There are 7 green kites and 2 yellow kites. How many kites are there in all?
  6. 6.1 + 8 =
  7. 7.2 + ? = 4
  8. 8.Kavya has 10 kites and gets 7 kites more. How many kites does Kavya have now?
  9. 9.1 + 1 + 7 =
  10. 10.Vivaan has 5 mangoes and gets 1 mango more. How many mangoes does Vivaan have now?
  11. 11.Lakshmi has 6 laddoos and gets 10 laddoos more. How many laddoos does Lakshmi have now?
  12. 12.4 + ? = 12
  13. 13.Gurpreet has 5 kites and gets 15 kites more. How many kites does Gurpreet have now?
  14. 14.Kavya has 2 mangoes and gets 11 mangoes more. How many mangoes does Kavya have now?
  15. 15.There are 8 blue crayons and 4 pink crayons. How many crayons are there in all?
  16. 16.Kavya has 10 laddoos and gets 6 laddoos more. How many laddoos does Kavya have now?
  17. 17.9 + 3 =
  18. 18.15 + 3 =
  19. 19.8 + 3 + 1 =
  20. 20.1 + ? = 3
  21. 21.10 + ? = 13
  22. 22.? + 3 = 12
  23. 23.5 + ? = 15
  24. 24.2 + 2 + 3 =
  25. 25.There are 5 red kites and 6 green kites. How many kites are there in all?
  26. 26.17 + 1 =
  27. 27.3 + 7 =
  28. 28.? + 5 = 10
  29. 29.6 + 9 =
  30. 30.There are 7 pink flowers and 4 yellow flowers. How many flowers are there in all?
  31. 31.Riya has 13 balloons and gets 1 balloon more. How many balloons does Riya have now?
  32. 32.Zoya has 7 books and gets 3 books more. How many books does Zoya have now?
  33. 33.3 + 2 + 4 =
  34. 34.Dev has 3 balls and gets 7 balls more. How many balls does Dev have now?
  35. 35.3 + 6 + 4 =
  36. 36.11 + 4 =
  37. 37.13 + ? = 14
  38. 38.Riya has 8 pencils and gets 6 pencils more. How many pencils does Riya have now?
  39. 39.1 + 17 =
  40. 40.Rohan has 5 balls and gets 6 balls more. How many balls does Rohan have now?

Answer key

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

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