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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 944 · 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. 1.14 + 1 =
  2. 2.Karan has 15 balls and gets 3 balls more. How many balls does Karan have now?
  3. 3.4 + ? = 6
  4. 4.6 + 2 + 5 =
  5. 5.7 + ? = 18
  6. 6.Joseph has 10 laddoos and gets 3 laddoos more. How many laddoos does Joseph have now?
  7. 7.5 + 3 + 5 =
  8. 8.3 + 3 + 1 =
  9. 9.6 + 4 + 10 =
  10. 10.? + 4 = 15
  11. 11.There are 2 blue balls and 11 red balls. How many balls are there in all?
  12. 12.4 + 8 + 8 =
  13. 13.6 + 5 + 4 =
  14. 14.16 + 1 =
  15. 15.13 + 3 =
  16. 16.1 + 5 + 8 =
  17. 17.1 + ? = 3
  18. 18.7 + 2 + 3 =
  19. 19.Meera has 6 books and gets 9 books more. How many books does Meera have now?
  20. 20.There are 4 yellow balloons and 10 green balloons. How many balloons are there in all?
  21. 21.4 + 3 =
  22. 22.? + 8 = 18
  23. 23.Zoya has 13 bananas and gets 5 bananas more. How many bananas does Zoya have now?
  24. 24.Rohan has 8 balls and gets 12 balls more. How many balls does Rohan have now?
  25. 25.Kavya has 2 laddoos and gets 2 laddoos more. How many laddoos does Kavya have now?
  26. 26.Isha has 10 kites and gets 10 kites more. How many kites does Isha have now?
  27. 27.2 + 12 =
  28. 28.There are 9 white beads and 5 pink beads. How many beads are there in all?
  29. 29.7 + 2 =
  30. 30.Dev has 12 flowers and gets 8 flowers more. How many flowers does Dev have now?
  31. 31.There are 12 blue flowers and 3 pink flowers. How many flowers are there in all?
  32. 32.3 + 4 + 2 =
  33. 33.8 + 7 + 1 =
  34. 34.6 + 6 =
  35. 35.? + 1 = 11
  36. 36.There are 10 red beads and 10 yellow beads. How many beads are there in all?
  37. 37.Meera has 9 mangoes and gets 8 mangoes more. How many mangoes does Meera have now?
  38. 38.There are 5 yellow kites and 12 red kites. How many kites are there in all?
  39. 39.Saanvi has 5 mangoes and gets 15 mangoes more. How many mangoes does Saanvi have now?
  40. 40.5 + 5 + 10 =

Answer key

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

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