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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 293 · 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. 1.5 + 6 + 1 =
  2. 2.Zoya has 8 shells and gets 9 shells more. How many shells does Zoya have now?
  3. 3.Dev has 13 laddoos and gets 1 laddoo more. How many laddoos does Dev have now?
  4. 4.1 + 11 =
  5. 5.9 + ? = 14
  6. 6.Priya has 9 flowers and gets 4 flowers more. How many flowers does Priya have now?
  7. 7.7 + 2 =
  8. 8.Rohan has 6 marbles and gets 1 marble more. How many marbles does Rohan have now?
  9. 9.18 + 2 =
  10. 10.Rahul has 4 balloons and gets 12 balloons more. How many balloons does Rahul have now?
  11. 11.There are 2 green balls and 7 red balls. How many balls are there in all?
  12. 12.Diya has 12 laddoos and gets 8 laddoos more. How many laddoos does Diya have now?
  13. 13.11 + 7 =
  14. 14.7 + 8 + 2 =
  15. 15.1 + 6 =
  16. 16.16 + 2 =
  17. 17.14 + 2 =
  18. 18.2 + ? = 5
  19. 19.There are 2 blue flowers and 18 red flowers. How many flowers are there in all?
  20. 20.Nisha has 4 marbles and gets 13 marbles more. How many marbles does Nisha have now?
  21. 21.4 + 13 =
  22. 22.6 + 6 + 1 =
  23. 23.? + 2 = 17
  24. 24.9 + 5 =
  25. 25.6 + 2 + 4 =
  26. 26.There are 6 yellow balls and 2 blue balls. How many balls are there in all?
  27. 27.? + 1 = 5
  28. 28.There are 6 blue kites and 13 yellow kites. How many kites are there in all?
  29. 29.There are 8 green crayons and 5 red crayons. How many crayons are there in all?
  30. 30.There are 4 red balls and 6 pink balls. How many balls are there in all?
  31. 31.There are 6 red crayons and 14 green crayons. How many crayons are there in all?
  32. 32.5 + 8 + 7 =
  33. 33.14 + 3 =
  34. 34.Lakshmi has 13 balls and gets 3 balls more. How many balls does Lakshmi have now?
  35. 35.? + 4 = 18
  36. 36.18 + 1 =
  37. 37.13 + ? = 16
  38. 38.There are 7 blue crayons and 6 white crayons. How many crayons are there in all?
  39. 39.Arjun has 14 laddoos and gets 2 laddoos more. How many laddoos does Arjun have now?
  40. 40.There are 5 blue flowers and 4 red flowers. How many flowers are there in all?

Answer key

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

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