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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 13 · 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 3 yellow flowers and 3 pink flowers. How many flowers are there in all?
  2. 2.5 + ? = 10
  3. 3.7 + 2 + 7 =
  4. 4.19 + 1 =
  5. 5.13 + 1 =
  6. 6.There are 10 pink kites and 5 red kites. How many kites are there in all?
  7. 7.There are 3 red balloons and 10 blue balloons. How many balloons are there in all?
  8. 8.1 + 2 =
  9. 9.There are 8 pink kites and 12 green kites. How many kites are there in all?
  10. 10.1 + ? = 15
  11. 11.8 + 5 =
  12. 12.? + 4 = 7
  13. 13.There are 11 red crayons and 2 blue crayons. How many crayons are there in all?
  14. 14.There are 9 white balloons and 2 yellow balloons. How many balloons are there in all?
  15. 15.Farhan has 7 kites and gets 9 kites more. How many kites does Farhan have now?
  16. 16.Priya has 9 shells and gets 8 shells more. How many shells does Priya have now?
  17. 17.3 + 6 + 4 =
  18. 18.Farhan has 11 mangoes and gets 5 mangoes more. How many mangoes does Farhan have now?
  19. 19.7 + 1 + 1 =
  20. 20.There are 5 red kites and 7 green kites. How many kites are there in all?
  21. 21.2 + 5 + 8 =
  22. 22.8 + 3 + 1 =
  23. 23.? + 3 = 10
  24. 24.? + 2 = 20
  25. 25.Rahul has 5 marbles and gets 11 marbles more. How many marbles does Rahul have now?
  26. 26.? + 6 = 8
  27. 27.? + 3 = 4
  28. 28.6 + 4 + 3 =
  29. 29.Karan has 7 shells and gets 2 shells more. How many shells does Karan have now?
  30. 30.Saanvi has 9 flowers and gets 7 flowers more. How many flowers does Saanvi have now?
  31. 31.? + 14 = 15
  32. 32.Joseph has 3 books and gets 15 books more. How many books does Joseph have now?
  33. 33.Nisha has 7 pencils and gets 10 pencils more. How many pencils does Nisha have now?
  34. 34.Vivaan has 8 balls and gets 1 ball more. How many balls does Vivaan have now?
  35. 35.1 + 1 + 8 =
  36. 36.There are 3 green balloons and 13 red balloons. How many balloons are there in all?
  37. 37.1 + ? = 9
  38. 38.8 + 8 =
  39. 39.2 + ? = 3
  40. 40.Kabir has 13 pencils and gets 6 pencils more. How many pencils does Kabir have now?

Answer key

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

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