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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 638 · 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. 1.11 + 9 =
  2. 2.? + 10 = 17
  3. 3.13 + 1 =
  4. 4.Lakshmi has 3 pencils and gets 2 pencils more. How many pencils does Lakshmi have now?
  5. 5.Nisha has 4 bananas and gets 9 bananas more. How many bananas does Nisha have now?
  6. 6.7 + 12 =
  7. 7.3 + ? = 12
  8. 8.Zoya has 3 laddoos and gets 15 laddoos more. How many laddoos does Zoya have now?
  9. 9.1 + ? = 4
  10. 10.Vivaan has 13 balloons and gets 6 balloons more. How many balloons does Vivaan have now?
  11. 11.There are 9 blue flowers and 2 yellow flowers. How many flowers are there in all?
  12. 12.? + 2 = 5
  13. 13.3 + 9 =
  14. 14.8 + 11 =
  15. 15.There are 2 red flowers and 3 blue flowers. How many flowers are there in all?
  16. 16.10 + 7 =
  17. 17.There are 12 yellow balloons and 3 green balloons. How many balloons are there in all?
  18. 18.There are 5 yellow balls and 3 blue balls. How many balls are there in all?
  19. 19.Rahul has 2 kites and gets 15 kites more. How many kites does Rahul have now?
  20. 20.? + 3 = 5
  21. 21.2 + 4 =
  22. 22.2 + 4 + 2 =
  23. 23.? + 14 = 19
  24. 24.7 + 2 + 2 =
  25. 25.3 + ? = 9
  26. 26.15 + 4 =
  27. 27.5 + 8 + 2 =
  28. 28.? + 3 = 9
  29. 29.There are 12 green balls and 3 pink balls. How many balls are there in all?
  30. 30.Rohan has 5 marbles and gets 3 marbles more. How many marbles does Rohan have now?
  31. 31.There are 3 yellow kites and 9 blue kites. How many kites are there in all?
  32. 32.1 + 1 + 16 =
  33. 33.12 + 1 =
  34. 34.4 + 1 + 5 =
  35. 35.There are 12 white balloons and 3 yellow balloons. How many balloons are there in all?
  36. 36.4 + 7 + 2 =
  37. 37.Meera has 13 bananas and gets 4 bananas more. How many bananas does Meera have now?
  38. 38.18 + 1 =
  39. 39.4 + 2 =
  40. 40.3 + 12 =

Answer key

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

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