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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 130 · 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 4 yellow flowers and 3 pink flowers. How many flowers are there in all?
  2. 2.4 + ? = 7
  3. 3.Ishaan has 14 crayons and gets 2 crayons more. How many crayons does Ishaan have now?
  4. 4.8 + 5 + 5 =
  5. 5.3 + ? = 8
  6. 6.7 + 13 =
  7. 7.There are 8 green flowers and 5 blue flowers. How many flowers are there in all?
  8. 8.4 + 7 + 8 =
  9. 9.15 + 4 =
  10. 10.Isha has 3 bananas and gets 6 bananas more. How many bananas does Isha have now?
  11. 11.Dev has 2 balloons and gets 15 balloons more. How many balloons does Dev have now?
  12. 12.? + 4 = 11
  13. 13.12 + 8 =
  14. 14.There are 12 green kites and 8 yellow kites. How many kites are there in all?
  15. 15.12 + ? = 13
  16. 16.There are 6 green crayons and 2 red crayons. How many crayons are there in all?
  17. 17.4 + ? = 14
  18. 18.Joseph has 12 laddoos and gets 8 laddoos more. How many laddoos does Joseph have now?
  19. 19.Karan has 7 pencils and gets 2 pencils more. How many pencils does Karan have now?
  20. 20.3 + ? = 9
  21. 21.5 + 1 + 3 =
  22. 22.8 + 7 + 3 =
  23. 23.4 + ? = 15
  24. 24.Tara has 5 kites and gets 12 kites more. How many kites does Tara have now?
  25. 25.? + 15 = 16
  26. 26.3 + 14 =
  27. 27.Ananya has 3 flowers and gets 4 flowers more. How many flowers does Ananya have now?
  28. 28.There are 2 white balls and 15 blue balls. How many balls are there in all?
  29. 29.Farhan has 15 pencils and gets 3 pencils more. How many pencils does Farhan have now?
  30. 30.3 + 1 + 15 =
  31. 31.1 + ? = 10
  32. 32.There are 5 yellow balls and 6 red balls. How many balls are there in all?
  33. 33.Kabir has 3 shells and gets 14 shells more. How many shells does Kabir have now?
  34. 34.There are 7 white crayons and 3 yellow crayons. How many crayons are there in all?
  35. 35.Arjun has 14 marbles and gets 3 marbles more. How many marbles does Arjun have now?
  36. 36.Rahul has 6 balloons and gets 11 balloons more. How many balloons does Rahul have now?
  37. 37.? + 14 = 15
  38. 38.6 + 3 =
  39. 39.There are 11 red beads and 7 yellow beads. How many beads are there in all?
  40. 40.? + 5 = 18

Answer key

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

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