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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 545 · 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. 1.1 + 7 + 9 =
  2. 2.Isha has 11 balls and gets 6 balls more. How many balls does Isha have now?
  3. 3.? + 5 = 13
  4. 4.7 + 1 + 2 =
  5. 5.2 + 7 + 7 =
  6. 6.There are 5 red kites and 13 green kites. How many kites are there in all?
  7. 7.13 + 1 =
  8. 8.? + 18 = 20
  9. 9.Meera has 10 laddoos and gets 7 laddoos more. How many laddoos does Meera have now?
  10. 10.6 + 2 + 11 =
  11. 11.3 + ? = 7
  12. 12.10 + 4 =
  13. 13.? + 4 = 8
  14. 14.4 + 6 =
  15. 15.There are 5 red balls and 8 green balls. How many balls are there in all?
  16. 16.Rahul has 13 kites and gets 2 kites more. How many kites does Rahul have now?
  17. 17.2 + ? = 10
  18. 18.6 + 7 + 2 =
  19. 19.12 + 6 =
  20. 20.6 + 1 =
  21. 21.13 + 3 =
  22. 22.5 + 6 + 3 =
  23. 23.14 + 6 =
  24. 24.Pooja has 14 shells and gets 4 shells more. How many shells does Pooja have now?
  25. 25.3 + 16 =
  26. 26.10 + 1 =
  27. 27.9 + 1 =
  28. 28.9 + 6 =
  29. 29.7 + 6 + 4 =
  30. 30.Saanvi has 6 mangoes and gets 2 mangoes more. How many mangoes does Saanvi have now?
  31. 31.Meera has 4 pencils and gets 10 pencils more. How many pencils does Meera have now?
  32. 32.Manav has 6 books and gets 9 books more. How many books does Manav have now?
  33. 33.There are 4 red kites and 2 pink kites. How many kites are there in all?
  34. 34.Kavya has 6 bananas and gets 2 bananas more. How many bananas does Kavya have now?
  35. 35.7 + ? = 17
  36. 36.7 + 5 + 1 =
  37. 37.14 + 3 =
  38. 38.There are 6 yellow balloons and 2 pink balloons. How many balloons are there in all?
  39. 39.There are 8 blue crayons and 3 red crayons. How many crayons are there in all?
  40. 40.Ananya has 12 laddoos and gets 3 laddoos more. How many laddoos does Ananya have now?

Answer key

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

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