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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 856 · 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. 1.7 + 9 =
  2. 2.There are 9 blue balls and 3 yellow balls. How many balls are there in all?
  3. 3.There are 6 white balls and 7 red balls. How many balls are there in all?
  4. 4.Gurpreet has 11 balloons and gets 6 balloons more. How many balloons does Gurpreet have now?
  5. 5.5 + 15 =
  6. 6.15 + 2 =
  7. 7.8 + 3 + 2 =
  8. 8.16 + 1 =
  9. 9.7 + ? = 8
  10. 10.18 + 2 =
  11. 11.There are 5 red crayons and 11 white crayons. How many crayons are there in all?
  12. 12.8 + 1 + 6 =
  13. 13.2 + 8 + 6 =
  14. 14.3 + ? = 9
  15. 15.? + 1 = 6
  16. 16.13 + 2 =
  17. 17.Aditya has 14 mangoes and gets 2 mangoes more. How many mangoes does Aditya have now?
  18. 18.There are 3 red balloons and 5 pink balloons. How many balloons are there in all?
  19. 19.Nisha has 5 balloons and gets 8 balloons more. How many balloons does Nisha have now?
  20. 20.? + 6 = 9
  21. 21.There are 3 green beads and 15 red beads. How many beads are there in all?
  22. 22.Aarav has 14 pencils and gets 1 pencil more. How many pencils does Aarav have now?
  23. 23.There are 2 red balls and 9 yellow balls. How many balls are there in all?
  24. 24.? + 2 = 4
  25. 25.16 + 4 =
  26. 26.Rohan has 14 books and gets 4 books more. How many books does Rohan have now?
  27. 27.6 + 1 + 6 =
  28. 28.There are 6 yellow kites and 13 red kites. How many kites are there in all?
  29. 29.There are 2 red crayons and 4 white crayons. How many crayons are there in all?
  30. 30.There are 3 red kites and 17 white kites. How many kites are there in all?
  31. 31.3 + 3 =
  32. 32.There are 5 yellow crayons and 14 blue crayons. How many crayons are there in all?
  33. 33.2 + 6 + 7 =
  34. 34.10 + 3 =
  35. 35.There are 4 yellow balloons and 11 pink balloons. How many balloons are there in all?
  36. 36.5 + 2 + 7 =
  37. 37.17 + 2 =
  38. 38.There are 7 red beads and 11 green beads. How many beads are there in all?
  39. 39.There are 8 blue kites and 6 pink kites. How many kites are there in all?
  40. 40.6 + 4 + 2 =

Answer key

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

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