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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 274 · 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. 1.13 + 1 =
  2. 2.? + 1 = 5
  3. 3.Aditya has 10 kites and gets 1 kite more. How many kites does Aditya have now?
  4. 4.1 + 5 + 11 =
  5. 5.There are 11 pink flowers and 7 green flowers. How many flowers are there in all?
  6. 6.5 + 6 + 1 =
  7. 7.There are 2 pink flowers and 15 blue flowers. How many flowers are there in all?
  8. 8.Farhan has 11 balls and gets 9 balls more. How many balls does Farhan have now?
  9. 9.11 + 5 =
  10. 10.9 + ? = 10
  11. 11.There are 3 red kites and 3 blue kites. How many kites are there in all?
  12. 12.1 + 6 + 10 =
  13. 13.6 + 1 + 3 =
  14. 14.There are 12 yellow crayons and 4 pink crayons. How many crayons are there in all?
  15. 15.9 + 9 =
  16. 16.? + 1 = 3
  17. 17.Arjun has 7 bananas and gets 9 bananas more. How many bananas does Arjun have now?
  18. 18.Farhan has 9 shells and gets 3 shells more. How many shells does Farhan have now?
  19. 19.Saanvi has 12 balloons and gets 2 balloons more. How many balloons does Saanvi have now?
  20. 20.7 + 3 + 7 =
  21. 21.18 + 1 =
  22. 22.Dev has 4 flowers and gets 2 flowers more. How many flowers does Dev have now?
  23. 23.Dev has 9 flowers and gets 4 flowers more. How many flowers does Dev have now?
  24. 24.Riya has 2 crayons and gets 3 crayons more. How many crayons does Riya have now?
  25. 25.Kabir has 9 balls and gets 7 balls more. How many balls does Kabir have now?
  26. 26.2 + ? = 11
  27. 27.19 + 1 =
  28. 28.10 + 10 =
  29. 29.18 + 2 =
  30. 30.There are 8 yellow kites and 10 blue kites. How many kites are there in all?
  31. 31.1 + 2 =
  32. 32.8 + 2 + 8 =
  33. 33.There are 3 yellow kites and 6 pink kites. How many kites are there in all?
  34. 34.Arjun has 14 laddoos and gets 2 laddoos more. How many laddoos does Arjun have now?
  35. 35.Vivaan has 8 marbles and gets 10 marbles more. How many marbles does Vivaan have now?
  36. 36.3 + 7 + 8 =
  37. 37.Nisha has 6 laddoos and gets 9 laddoos more. How many laddoos does Nisha have now?
  38. 38.There are 3 blue flowers and 16 green flowers. How many flowers are there in all?
  39. 39.Manav has 5 flowers and gets 2 flowers more. How many flowers does Manav have now?
  40. 40.There are 6 green balls and 10 pink balls. How many balls are there in all?

Answer key

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

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