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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 916 · 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 6 yellow flowers and 8 green flowers. How many flowers are there in all?
  2. 2.Aditya has 4 balls and gets 5 balls more. How many balls does Aditya have now?
  3. 3.Pooja has 15 flowers and gets 3 flowers more. How many flowers does Pooja have now?
  4. 4.There are 11 yellow balloons and 6 red balloons. How many balloons are there in all?
  5. 5.Aarav has 12 crayons and gets 5 crayons more. How many crayons does Aarav have now?
  6. 6.There are 5 yellow kites and 12 blue kites. How many kites are there in all?
  7. 7.1 + ? = 7
  8. 8.7 + 6 =
  9. 9.6 + 1 + 9 =
  10. 10.There are 5 blue kites and 2 red kites. How many kites are there in all?
  11. 11.Arjun has 10 shells and gets 4 shells more. How many shells does Arjun have now?
  12. 12.Nisha has 9 kites and gets 10 kites more. How many kites does Nisha have now?
  13. 13.Aditya has 12 balls and gets 3 balls more. How many balls does Aditya have now?
  14. 14.? + 7 = 20
  15. 15.5 + 5 + 2 =
  16. 16.1 + 3 + 1 =
  17. 17.17 + 1 =
  18. 18.Aarav has 10 flowers and gets 4 flowers more. How many flowers does Aarav have now?
  19. 19.? + 3 = 6
  20. 20.5 + 1 + 12 =
  21. 21.There are 10 blue flowers and 3 pink flowers. How many flowers are there in all?
  22. 22.16 + ? = 20
  23. 23.11 + ? = 20
  24. 24.There are 11 green balls and 5 red balls. How many balls are there in all?
  25. 25.1 + 2 =
  26. 26.3 + 1 + 11 =
  27. 27.Aarav has 14 laddoos and gets 1 laddoo more. How many laddoos does Aarav have now?
  28. 28.16 + 4 =
  29. 29.8 + 6 + 6 =
  30. 30.7 + 13 =
  31. 31.3 + 2 + 7 =
  32. 32.Gurpreet has 10 mangoes and gets 7 mangoes more. How many mangoes does Gurpreet have now?
  33. 33.18 + 2 =
  34. 34.4 + 8 =
  35. 35.9 + 7 =
  36. 36.Kabir has 9 laddoos and gets 6 laddoos more. How many laddoos does Kabir have now?
  37. 37.7 + 8 + 4 =
  38. 38.There are 8 blue flowers and 6 green flowers. How many flowers are there in all?
  39. 39.1 + 4 + 12 =
  40. 40.6 + 6 + 5 =

Answer key

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

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