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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 349 · 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. 1.6 + 9 =
  2. 2.Arjun has 7 bananas and gets 4 bananas more. How many bananas does Arjun have now?
  3. 3.? + 3 = 4
  4. 4.5 + ? = 20
  5. 5.3 + 2 + 4 =
  6. 6.Meera has 3 laddoos and gets 1 laddoo more. How many laddoos does Meera have now?
  7. 7.11 + 5 =
  8. 8.1 + ? = 3
  9. 9.4 + 4 + 11 =
  10. 10.There are 7 red crayons and 2 yellow crayons. How many crayons are there in all?
  11. 11.17 + 2 =
  12. 12.Kabir has 3 pencils and gets 11 pencils more. How many pencils does Kabir have now?
  13. 13.? + 5 = 9
  14. 14.Isha has 5 mangoes and gets 12 mangoes more. How many mangoes does Isha have now?
  15. 15.5 + ? = 6
  16. 16.3 + ? = 6
  17. 17.Pooja has 4 crayons and gets 13 crayons more. How many crayons does Pooja have now?
  18. 18.5 + 2 + 1 =
  19. 19.Rahul has 12 balls and gets 2 balls more. How many balls does Rahul have now?
  20. 20.17 + 1 =
  21. 21.8 + 1 + 6 =
  22. 22.3 + 6 + 4 =
  23. 23.10 + ? = 11
  24. 24.Pooja has 8 pencils and gets 8 pencils more. How many pencils does Pooja have now?
  25. 25.6 + 6 =
  26. 26.Kabir has 3 marbles and gets 17 marbles more. How many marbles does Kabir have now?
  27. 27.? + 3 = 7
  28. 28.? + 3 = 12
  29. 29.Zoya has 2 flowers and gets 9 flowers more. How many flowers does Zoya have now?
  30. 30.Gurpreet has 6 books and gets 5 books more. How many books does Gurpreet have now?
  31. 31.Rohan has 2 kites and gets 16 kites more. How many kites does Rohan have now?
  32. 32.14 + 1 =
  33. 33.2 + 6 =
  34. 34.Dev has 11 bananas and gets 2 bananas more. How many bananas does Dev have now?
  35. 35.1 + 5 + 6 =
  36. 36.There are 4 blue balloons and 6 pink balloons. How many balloons are there in all?
  37. 37.3 + ? = 4
  38. 38.Riya has 12 flowers and gets 2 flowers more. How many flowers does Riya have now?
  39. 39.8 + 10 =
  40. 40.1 + ? = 14

Answer key

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

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