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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 598 · 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.? + 2 = 7
  2. 2.There are 8 blue balls and 3 green balls. How many balls are there in all?
  3. 3.? + 1 = 3
  4. 4.9 + 5 =
  5. 5.Kavya has 4 marbles and gets 6 marbles more. How many marbles does Kavya have now?
  6. 6.Riya has 5 flowers and gets 5 flowers more. How many flowers does Riya have now?
  7. 7.Riya has 4 balloons and gets 15 balloons more. How many balloons does Riya have now?
  8. 8.There are 3 yellow kites and 2 red kites. How many kites are there in all?
  9. 9.There are 10 white crayons and 2 pink crayons. How many crayons are there in all?
  10. 10.There are 10 green flowers and 2 pink flowers. How many flowers are there in all?
  11. 11.6 + 1 + 8 =
  12. 12.14 + 5 =
  13. 13.2 + 7 + 11 =
  14. 14.7 + 5 =
  15. 15.19 + 1 =
  16. 16.Zoya has 11 flowers and gets 2 flowers more. How many flowers does Zoya have now?
  17. 17.1 + 15 =
  18. 18.12 + 3 =
  19. 19.There are 6 white flowers and 11 red flowers. How many flowers are there in all?
  20. 20.There are 8 green flowers and 11 red flowers. How many flowers are there in all?
  21. 21.8 + 5 =
  22. 22.8 + 3 + 2 =
  23. 23.18 + 1 =
  24. 24.12 + 5 =
  25. 25.Lakshmi has 13 kites and gets 2 kites more. How many kites does Lakshmi have now?
  26. 26.? + 4 = 5
  27. 27.Diya has 2 bananas and gets 5 bananas more. How many bananas does Diya have now?
  28. 28.Saanvi has 5 bananas and gets 3 bananas more. How many bananas does Saanvi have now?
  29. 29.2 + ? = 11
  30. 30.4 + ? = 10
  31. 31.There are 11 blue balloons and 9 pink balloons. How many balloons are there in all?
  32. 32.7 + 13 =
  33. 33.4 + ? = 7
  34. 34.Saanvi has 12 mangoes and gets 2 mangoes more. How many mangoes does Saanvi have now?
  35. 35.4 + ? = 18
  36. 36.? + 19 = 20
  37. 37.2 + 6 =
  38. 38.There are 11 blue kites and 8 red kites. How many kites are there in all?
  39. 39.6 + ? = 18
  40. 40.3 + 5 + 3 =

Answer key

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

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