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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 215 · 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 7 yellow flowers and 3 pink flowers. How many flowers are there in all?
  2. 2.1 + 1 + 18 =
  3. 3.Priya has 5 flowers and gets 5 flowers more. How many flowers does Priya have now?
  4. 4.16 + 1 =
  5. 5.Vivaan has 4 balls and gets 11 balls more. How many balls does Vivaan have now?
  6. 6.7 + ? = 8
  7. 7.1 + ? = 6
  8. 8.7 + 7 + 5 =
  9. 9.2 + 2 + 4 =
  10. 10.15 + 5 =
  11. 11.Diya has 15 pencils and gets 2 pencils more. How many pencils does Diya have now?
  12. 12.6 + ? = 19
  13. 13.Aarav has 2 kites and gets 5 kites more. How many kites does Aarav have now?
  14. 14.4 + 6 + 4 =
  15. 15.5 + 7 + 5 =
  16. 16.? + 3 = 12
  17. 17.6 + 7 + 6 =
  18. 18.Dev has 6 mangoes and gets 11 mangoes more. How many mangoes does Dev have now?
  19. 19.8 + 6 + 2 =
  20. 20.Riya has 7 laddoos and gets 8 laddoos more. How many laddoos does Riya have now?
  21. 21.Kabir has 9 pencils and gets 9 pencils more. How many pencils does Kabir have now?
  22. 22.8 + 2 + 1 =
  23. 23.Pooja has 15 marbles and gets 5 marbles more. How many marbles does Pooja have now?
  24. 24.There are 4 pink flowers and 7 blue flowers. How many flowers are there in all?
  25. 25.Kavya has 2 mangoes and gets 7 mangoes more. How many mangoes does Kavya have now?
  26. 26.3 + 13 =
  27. 27.7 + ? = 20
  28. 28.6 + 3 =
  29. 29.3 + 2 =
  30. 30.18 + 2 =
  31. 31.16 + 3 =
  32. 32.Lakshmi has 14 books and gets 2 books more. How many books does Lakshmi have now?
  33. 33.10 + 2 =
  34. 34.8 + ? = 9
  35. 35.3 + 1 =
  36. 36.16 + 4 =
  37. 37.9 + 6 =
  38. 38.There are 10 white kites and 2 pink kites. How many kites are there in all?
  39. 39.Aarav has 4 laddoos and gets 10 laddoos more. How many laddoos does Aarav have now?
  40. 40.17 + 2 =

Answer key

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

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