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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 726 · 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.Sneha has 13 pencils and gets 2 pencils more. How many pencils does Sneha have now?
  2. 2.7 + 3 + 7 =
  3. 3.2 + 17 =
  4. 4.6 + 7 =
  5. 5.1 + 1 + 12 =
  6. 6.8 + 8 + 4 =
  7. 7.14 + 3 =
  8. 8.There are 8 red balloons and 3 pink balloons. How many balloons are there in all?
  9. 9.Isha has 11 balls and gets 1 ball more. How many balls does Isha have now?
  10. 10.Tara has 12 pencils and gets 2 pencils more. How many pencils does Tara have now?
  11. 11.1 + 3 + 4 =
  12. 12.15 + 5 =
  13. 13.Dev has 8 pencils and gets 9 pencils more. How many pencils does Dev have now?
  14. 14.? + 6 = 7
  15. 15.Kabir has 10 books and gets 6 books more. How many books does Kabir have now?
  16. 16.There are 8 white beads and 6 green beads. How many beads are there in all?
  17. 17.There are 4 pink balloons and 13 blue balloons. How many balloons are there in all?
  18. 18.Ananya has 12 kites and gets 5 kites more. How many kites does Ananya have now?
  19. 19.Riya has 12 laddoos and gets 3 laddoos more. How many laddoos does Riya have now?
  20. 20.Zoya has 5 crayons and gets 5 crayons more. How many crayons does Zoya have now?
  21. 21.Aditya has 7 marbles and gets 5 marbles more. How many marbles does Aditya have now?
  22. 22.16 + 1 =
  23. 23.1 + ? = 16
  24. 24.Priya has 9 marbles and gets 7 marbles more. How many marbles does Priya have now?
  25. 25.Riya has 10 mangoes and gets 1 mango more. How many mangoes does Riya have now?
  26. 26.Zoya has 13 mangoes and gets 5 mangoes more. How many mangoes does Zoya have now?
  27. 27.Vivaan has 8 balloons and gets 9 balloons more. How many balloons does Vivaan have now?
  28. 28.4 + 8 + 2 =
  29. 29.Rohan has 7 laddoos and gets 6 laddoos more. How many laddoos does Rohan have now?
  30. 30.Karan has 10 balls and gets 9 balls more. How many balls does Karan have now?
  31. 31.? + 9 = 17
  32. 32.? + 3 = 16
  33. 33.There are 4 red beads and 16 green beads. How many beads are there in all?
  34. 34.? + 13 = 18
  35. 35.? + 15 = 20
  36. 36.7 + 13 =
  37. 37.6 + 6 + 8 =
  38. 38.2 + 5 + 10 =
  39. 39.? + 4 = 5
  40. 40.1 + 1 + 8 =

Answer key

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

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