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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 734 · 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. 1.3 + ? = 4
  2. 2.There are 10 blue flowers and 10 red flowers. How many flowers are there in all?
  3. 3.There are 5 blue balls and 3 red balls. How many balls are there in all?
  4. 4.8 + 2 + 8 =
  5. 5.There are 7 pink kites and 12 white kites. How many kites are there in all?
  6. 6.3 + 7 + 6 =
  7. 7.18 + 2 =
  8. 8.13 + 2 =
  9. 9.Meera has 3 laddoos and gets 5 laddoos more. How many laddoos does Meera have now?
  10. 10.15 + 2 =
  11. 11.1 + 7 + 3 =
  12. 12.8 + 12 =
  13. 13.7 + 7 + 2 =
  14. 14.6 + 4 =
  15. 15.There are 12 red beads and 8 green beads. How many beads are there in all?
  16. 16.There are 3 white kites and 3 blue kites. How many kites are there in all?
  17. 17.There are 3 pink kites and 8 red kites. How many kites are there in all?
  18. 18.There are 10 pink beads and 4 yellow beads. How many beads are there in all?
  19. 19.Arjun has 13 bananas and gets 5 bananas more. How many bananas does Arjun have now?
  20. 20.1 + 4 =
  21. 21.2 + 4 + 4 =
  22. 22.8 + 10 =
  23. 23.There are 11 pink balloons and 4 blue balloons. How many balloons are there in all?
  24. 24.5 + ? = 9
  25. 25.3 + 4 + 2 =
  26. 26.5 + 12 =
  27. 27.Lakshmi has 13 balls and gets 5 balls more. How many balls does Lakshmi have now?
  28. 28.15 + 3 =
  29. 29.There are 11 pink beads and 5 green beads. How many beads are there in all?
  30. 30.8 + 3 =
  31. 31.8 + 8 =
  32. 32.There are 11 red beads and 6 green beads. How many beads are there in all?
  33. 33.Manav has 7 bananas and gets 4 bananas more. How many bananas does Manav have now?
  34. 34.Farhan has 10 shells and gets 10 shells more. How many shells does Farhan have now?
  35. 35.? + 8 = 12
  36. 36.2 + 4 =
  37. 37.There are 12 pink beads and 4 blue beads. How many beads are there in all?
  38. 38.2 + ? = 11
  39. 39.There are 10 blue flowers and 5 pink flowers. How many flowers are there in all?
  40. 40.? + 10 = 20

Answer key

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

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