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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 523 · 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. 1.8 + 2 + 3 =
  2. 2.18 + 1 =
  3. 3.Zoya has 8 bananas and gets 6 bananas more. How many bananas does Zoya have now?
  4. 4.There are 6 yellow beads and 14 green beads. How many beads are there in all?
  5. 5.3 + ? = 15
  6. 6.4 + 8 + 5 =
  7. 7.Karan has 13 pencils and gets 6 pencils more. How many pencils does Karan have now?
  8. 8.Rohan has 12 marbles and gets 5 marbles more. How many marbles does Rohan have now?
  9. 9.? + 6 = 9
  10. 10.Pooja has 6 bananas and gets 8 bananas more. How many bananas does Pooja have now?
  11. 11.12 + ? = 17
  12. 12.8 + 6 =
  13. 13.4 + 8 =
  14. 14.1 + 5 + 2 =
  15. 15.? + 3 = 17
  16. 16.There are 8 yellow beads and 7 red beads. How many beads are there in all?
  17. 17.1 + ? = 3
  18. 18.? + 7 = 12
  19. 19.Isha has 13 bananas and gets 3 bananas more. How many bananas does Isha have now?
  20. 20.There are 11 pink beads and 2 red beads. How many beads are there in all?
  21. 21.There are 3 blue flowers and 5 yellow flowers. How many flowers are there in all?
  22. 22.Zoya has 9 bananas and gets 9 bananas more. How many bananas does Zoya have now?
  23. 23.5 + 8 + 5 =
  24. 24.4 + 1 + 3 =
  25. 25.5 + 9 =
  26. 26.8 + 7 + 4 =
  27. 27.2 + 4 + 13 =
  28. 28.4 + 3 + 5 =
  29. 29.12 + 5 =
  30. 30.19 + 1 =
  31. 31.? + 3 = 7
  32. 32.Rahul has 12 crayons and gets 2 crayons more. How many crayons does Rahul have now?
  33. 33.8 + 7 =
  34. 34.There are 2 green kites and 6 red kites. How many kites are there in all?
  35. 35.There are 7 pink flowers and 7 blue flowers. How many flowers are there in all?
  36. 36.? + 3 = 6
  37. 37.There are 5 white beads and 7 green beads. How many beads are there in all?
  38. 38.8 + 4 + 5 =
  39. 39.11 + 6 =
  40. 40.17 + 1 =

Answer key

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

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