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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 134 · 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.Rahul has 13 pencils and gets 2 pencils more. How many pencils does Rahul have now?
  2. 2.11 + 2 =
  3. 3.There are 10 pink beads and 6 red beads. How many beads are there in all?
  4. 4.19 + 1 =
  5. 5.2 + 3 + 11 =
  6. 6.12 + ? = 18
  7. 7.6 + 5 + 7 =
  8. 8.There are 11 white kites and 4 blue kites. How many kites are there in all?
  9. 9.14 + 5 =
  10. 10.Zoya has 5 flowers and gets 13 flowers more. How many flowers does Zoya have now?
  11. 11.Rohan has 15 balls and gets 1 ball more. How many balls does Rohan have now?
  12. 12.There are 7 green beads and 13 pink beads. How many beads are there in all?
  13. 13.There are 4 white beads and 16 yellow beads. How many beads are there in all?
  14. 14.Kabir has 6 flowers and gets 1 flower more. How many flowers does Kabir have now?
  15. 15.1 + ? = 6
  16. 16.7 + 6 + 6 =
  17. 17.Tara has 13 balls and gets 2 balls more. How many balls does Tara have now?
  18. 18.1 + 4 + 7 =
  19. 19.There are 5 white crayons and 10 yellow crayons. How many crayons are there in all?
  20. 20.There are 2 yellow balls and 12 pink balls. How many balls are there in all?
  21. 21.There are 6 green flowers and 4 yellow flowers. How many flowers are there in all?
  22. 22.Pooja has 7 pencils and gets 13 pencils more. How many pencils does Pooja have now?
  23. 23.12 + 2 =
  24. 24.There are 9 green balloons and 5 red balloons. How many balloons are there in all?
  25. 25.There are 7 blue flowers and 5 white flowers. How many flowers are there in all?
  26. 26.11 + 1 =
  27. 27.2 + 3 + 4 =
  28. 28.There are 12 yellow flowers and 5 green flowers. How many flowers are there in all?
  29. 29.4 + 3 =
  30. 30.Sneha has 4 pencils and gets 2 pencils more. How many pencils does Sneha have now?
  31. 31.11 + 9 =
  32. 32.There are 4 pink balls and 12 white balls. How many balls are there in all?
  33. 33.? + 8 = 11
  34. 34.8 + 7 + 1 =
  35. 35.13 + 3 =
  36. 36.? + 2 = 18
  37. 37.7 + 2 + 2 =
  38. 38.6 + 2 + 3 =
  39. 39.? + 2 = 3
  40. 40.1 + ? = 3

Answer key

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

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