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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 91 · 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. 1.3 + 3 + 1 =
  2. 2.There are 12 red flowers and 2 green flowers. How many flowers are there in all?
  3. 3.17 + 2 =
  4. 4.9 + 1 =
  5. 5.Zoya has 5 balls and gets 13 balls more. How many balls does Zoya have now?
  6. 6.There are 11 white kites and 7 red kites. How many kites are there in all?
  7. 7.7 + 9 =
  8. 8.5 + 5 + 10 =
  9. 9.There are 6 pink crayons and 7 red crayons. How many crayons are there in all?
  10. 10.There are 4 green balls and 13 red balls. How many balls are there in all?
  11. 11.There are 4 blue balloons and 7 green balloons. How many balloons are there in all?
  12. 12.Saanvi has 14 pencils and gets 4 pencils more. How many pencils does Saanvi have now?
  13. 13.Vivaan has 2 pencils and gets 6 pencils more. How many pencils does Vivaan have now?
  14. 14.7 + 13 =
  15. 15.? + 3 = 9
  16. 16.There are 4 yellow flowers and 6 red flowers. How many flowers are there in all?
  17. 17.Pooja has 6 crayons and gets 2 crayons more. How many crayons does Pooja have now?
  18. 18.? + 1 = 6
  19. 19.There are 5 red balls and 9 green balls. How many balls are there in all?
  20. 20.There are 11 white kites and 6 green kites. How many kites are there in all?
  21. 21.Ananya has 9 balls and gets 7 balls more. How many balls does Ananya have now?
  22. 22.1 + ? = 5
  23. 23.18 + ? = 20
  24. 24.4 + ? = 5
  25. 25.Pooja has 2 shells and gets 4 shells more. How many shells does Pooja have now?
  26. 26.6 + 2 + 10 =
  27. 27.3 + ? = 15
  28. 28.Arjun has 13 balloons and gets 7 balloons more. How many balloons does Arjun have now?
  29. 29.? + 3 = 16
  30. 30.2 + 7 + 7 =
  31. 31.Kabir has 4 shells and gets 10 shells more. How many shells does Kabir have now?
  32. 32.? + 5 = 13
  33. 33.5 + 14 =
  34. 34.1 + ? = 9
  35. 35.Rahul has 5 mangoes and gets 13 mangoes more. How many mangoes does Rahul have now?
  36. 36.There are 12 red kites and 6 pink kites. How many kites are there in all?
  37. 37.8 + 4 + 2 =
  38. 38.Rahul has 12 pencils and gets 4 pencils more. How many pencils does Rahul have now?
  39. 39.There are 5 white crayons and 12 yellow crayons. How many crayons are there in all?
  40. 40.? + 2 = 4

Answer key

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

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