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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 977 · 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.There are 4 red balls and 8 blue balls. How many balls are there in all?
  2. 2.1 + ? = 15
  3. 3.Gurpreet has 3 mangoes and gets 4 mangoes more. How many mangoes does Gurpreet have now?
  4. 4.Joseph has 5 kites and gets 3 kites more. How many kites does Joseph have now?
  5. 5.There are 12 red crayons and 3 green crayons. How many crayons are there in all?
  6. 6.Karan has 8 flowers and gets 1 flower more. How many flowers does Karan have now?
  7. 7.8 + 7 + 1 =
  8. 8.Rohan has 2 crayons and gets 18 crayons more. How many crayons does Rohan have now?
  9. 9.There are 2 green beads and 11 yellow beads. How many beads are there in all?
  10. 10.Ananya has 12 bananas and gets 5 bananas more. How many bananas does Ananya have now?
  11. 11.10 + ? = 12
  12. 12.There are 7 yellow balloons and 4 blue balloons. How many balloons are there in all?
  13. 13.Tara has 4 crayons and gets 6 crayons more. How many crayons does Tara have now?
  14. 14.There are 3 blue kites and 16 red kites. How many kites are there in all?
  15. 15.There are 5 pink balloons and 7 white balloons. How many balloons are there in all?
  16. 16.15 + 2 =
  17. 17.11 + ? = 20
  18. 18.Aarav has 6 shells and gets 8 shells more. How many shells does Aarav have now?
  19. 19.3 + ? = 7
  20. 20.2 + ? = 3
  21. 21.3 + ? = 5
  22. 22.7 + 6 + 5 =
  23. 23.6 + ? = 9
  24. 24.1 + 8 + 5 =
  25. 25.6 + 2 + 8 =
  26. 26.7 + 2 + 4 =
  27. 27.1 + 3 + 15 =
  28. 28.12 + 8 =
  29. 29.There are 8 blue balloons and 6 pink balloons. How many balloons are there in all?
  30. 30.Aditya has 2 pencils and gets 15 pencils more. How many pencils does Aditya have now?
  31. 31.There are 11 red kites and 8 yellow kites. How many kites are there in all?
  32. 32.4 + 3 + 4 =
  33. 33.There are 12 yellow crayons and 5 white crayons. How many crayons are there in all?
  34. 34.There are 9 pink beads and 3 white beads. How many beads are there in all?
  35. 35.5 + 3 + 4 =
  36. 36.13 + 3 =
  37. 37.4 + 1 + 2 =
  38. 38.There are 6 green kites and 5 blue kites. How many kites are there in all?
  39. 39.Arjun has 13 books and gets 7 books more. How many books does Arjun have now?
  40. 40.Aditya has 11 mangoes and gets 8 mangoes more. How many mangoes does Aditya have now?

Answer key

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

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