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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 244 · 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 = 13
  2. 2.8 + 10 =
  3. 3.Riya has 5 laddoos and gets 3 laddoos more. How many laddoos does Riya have now?
  4. 4.2 + 2 + 1 =
  5. 5.5 + 3 =
  6. 6.There are 11 red beads and 9 white beads. How many beads are there in all?
  7. 7.2 + 8 + 2 =
  8. 8.Joseph has 2 shells and gets 1 shell more. How many shells does Joseph have now?
  9. 9.There are 2 pink flowers and 5 white flowers. How many flowers are there in all?
  10. 10.There are 9 yellow kites and 3 blue kites. How many kites are there in all?
  11. 11.There are 3 blue balls and 11 green balls. How many balls are there in all?
  12. 12.Lakshmi has 3 bananas and gets 14 bananas more. How many bananas does Lakshmi have now?
  13. 13.7 + 5 + 3 =
  14. 14.There are 9 blue kites and 11 red kites. How many kites are there in all?
  15. 15.7 + 7 + 1 =
  16. 16.There are 8 red balls and 6 green balls. How many balls are there in all?
  17. 17.? + 2 = 9
  18. 18.2 + 2 + 8 =
  19. 19.2 + ? = 3
  20. 20.There are 9 yellow beads and 6 blue beads. How many beads are there in all?
  21. 21.3 + ? = 8
  22. 22.? + 14 = 15
  23. 23.4 + 4 + 7 =
  24. 24.5 + 14 =
  25. 25.There are 2 white flowers and 7 pink flowers. How many flowers are there in all?
  26. 26.4 + 4 + 1 =
  27. 27.There are 2 pink flowers and 3 yellow flowers. How many flowers are there in all?
  28. 28.5 + 8 =
  29. 29.Saanvi has 9 bananas and gets 1 banana more. How many bananas does Saanvi have now?
  30. 30.1 + 6 + 4 =
  31. 31.Ananya has 2 kites and gets 13 kites more. How many kites does Ananya have now?
  32. 32.2 + 7 =
  33. 33.5 + 2 + 10 =
  34. 34.Aarav has 8 books and gets 1 book more. How many books does Aarav have now?
  35. 35.1 + 6 + 6 =
  36. 36.? + 3 = 6
  37. 37.8 + 9 =
  38. 38.There are 10 yellow balloons and 2 red balloons. How many balloons are there in all?
  39. 39.2 + 7 + 9 =
  40. 40.6 + 2 + 1 =

Answer key

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

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