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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 601 · 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. 1.4 + 3 + 10 =
  2. 2.Riya has 3 balls and gets 6 balls more. How many balls does Riya have now?
  3. 3.4 + ? = 7
  4. 4.? + 2 = 9
  5. 5.18 + 1 =
  6. 6.? + 3 = 4
  7. 7.18 + 2 =
  8. 8.Meera has 7 shells and gets 4 shells more. How many shells does Meera have now?
  9. 9.6 + 2 + 2 =
  10. 10.2 + 16 =
  11. 11.There are 3 green kites and 5 blue kites. How many kites are there in all?
  12. 12.There are 3 pink flowers and 15 blue flowers. How many flowers are there in all?
  13. 13.2 + 6 + 10 =
  14. 14.Pooja has 6 bananas and gets 2 bananas more. How many bananas does Pooja have now?
  15. 15.2 + ? = 12
  16. 16.There are 5 red balloons and 15 blue balloons. How many balloons are there in all?
  17. 17.4 + ? = 5
  18. 18.There are 7 red balloons and 8 pink balloons. How many balloons are there in all?
  19. 19.5 + ? = 20
  20. 20.There are 12 pink kites and 7 yellow kites. How many kites are there in all?
  21. 21.Aditya has 12 mangoes and gets 6 mangoes more. How many mangoes does Aditya have now?
  22. 22.There are 10 white crayons and 3 pink crayons. How many crayons are there in all?
  23. 23.14 + 5 =
  24. 24.7 + 2 =
  25. 25.3 + 2 =
  26. 26.17 + 1 =
  27. 27.Farhan has 11 laddoos and gets 2 laddoos more. How many laddoos does Farhan have now?
  28. 28.4 + 3 + 4 =
  29. 29.1 + 3 + 8 =
  30. 30.Pooja has 6 kites and gets 5 kites more. How many kites does Pooja have now?
  31. 31.There are 9 red kites and 3 pink kites. How many kites are there in all?
  32. 32.3 + 7 + 9 =
  33. 33.There are 6 red kites and 8 green kites. How many kites are there in all?
  34. 34.There are 11 green kites and 7 white kites. How many kites are there in all?
  35. 35.10 + 1 =
  36. 36.Saanvi has 12 balls and gets 8 balls more. How many balls does Saanvi have now?
  37. 37.4 + 2 =
  38. 38.8 + 6 =
  39. 39.? + 4 = 10
  40. 40.Priya has 2 mangoes and gets 1 mango more. How many mangoes does Priya have now?

Answer key

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

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