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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 700 · 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.Aarav has 3 books and gets 8 books more. How many books does Aarav have now?
  2. 2.6 + 7 + 1 =
  3. 3.There are 6 white balloons and 13 yellow balloons. How many balloons are there in all?
  4. 4.3 + 4 + 5 =
  5. 5.1 + 3 + 15 =
  6. 6.Rohan has 14 mangoes and gets 2 mangoes more. How many mangoes does Rohan have now?
  7. 7.8 + 6 + 2 =
  8. 8.9 + ? = 20
  9. 9.Zoya has 2 crayons and gets 12 crayons more. How many crayons does Zoya have now?
  10. 10.Karan has 15 flowers and gets 4 flowers more. How many flowers does Karan have now?
  11. 11.There are 4 red kites and 14 yellow kites. How many kites are there in all?
  12. 12.There are 7 yellow beads and 3 green beads. How many beads are there in all?
  13. 13.2 + ? = 4
  14. 14.Lakshmi has 10 books and gets 8 books more. How many books does Lakshmi have now?
  15. 15.1 + ? = 6
  16. 16.There are 10 white balloons and 8 green balloons. How many balloons are there in all?
  17. 17.There are 10 red flowers and 10 pink flowers. How many flowers are there in all?
  18. 18.? + 16 = 19
  19. 19.There are 12 green beads and 2 yellow beads. How many beads are there in all?
  20. 20.7 + 4 + 6 =
  21. 21.8 + 7 + 5 =
  22. 22.5 + 3 =
  23. 23.5 + ? = 7
  24. 24.11 + 3 =
  25. 25.6 + 13 =
  26. 26.8 + 8 + 4 =
  27. 27.There are 4 yellow kites and 11 red kites. How many kites are there in all?
  28. 28.Meera has 8 pencils and gets 7 pencils more. How many pencils does Meera have now?
  29. 29.5 + 3 + 3 =
  30. 30.4 + 7 + 8 =
  31. 31.1 + 7 + 1 =
  32. 32.1 + 3 + 4 =
  33. 33.Vivaan has 11 balls and gets 6 balls more. How many balls does Vivaan have now?
  34. 34.? + 18 = 19
  35. 35.? + 2 = 20
  36. 36.16 + 1 =
  37. 37.There are 10 blue crayons and 9 green crayons. How many crayons are there in all?
  38. 38.7 + 1 + 1 =
  39. 39.There are 2 pink flowers and 7 red flowers. How many flowers are there in all?
  40. 40.Rahul has 4 books and gets 5 books more. How many books does Rahul have now?

Answer key

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

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