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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 531 · 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. 1.7 + 5 + 1 =
  2. 2.3 + 3 + 7 =
  3. 3.Priya has 13 laddoos and gets 2 laddoos more. How many laddoos does Priya have now?
  4. 4.Pooja has 7 kites and gets 5 kites more. How many kites does Pooja have now?
  5. 5.? + 1 = 10
  6. 6.There are 2 red flowers and 6 pink flowers. How many flowers are there in all?
  7. 7.4 + 8 =
  8. 8.There are 5 pink beads and 13 yellow beads. How many beads are there in all?
  9. 9.Karan has 5 marbles and gets 11 marbles more. How many marbles does Karan have now?
  10. 10.11 + ? = 19
  11. 11.There are 2 green balloons and 9 pink balloons. How many balloons are there in all?
  12. 12.8 + 4 =
  13. 13.4 + 2 + 13 =
  14. 14.4 + 1 + 3 =
  15. 15.15 + 3 =
  16. 16.6 + 3 + 2 =
  17. 17.Aarav has 8 bananas and gets 9 bananas more. How many bananas does Aarav have now?
  18. 18.Rohan has 12 balloons and gets 2 balloons more. How many balloons does Rohan have now?
  19. 19.There are 10 blue crayons and 3 white crayons. How many crayons are there in all?
  20. 20.4 + 3 =
  21. 21.Joseph has 11 flowers and gets 3 flowers more. How many flowers does Joseph have now?
  22. 22.Karan has 5 flowers and gets 3 flowers more. How many flowers does Karan have now?
  23. 23.? + 3 = 10
  24. 24.There are 3 green flowers and 10 white flowers. How many flowers are there in all?
  25. 25.2 + ? = 5
  26. 26.Ishaan has 3 kites and gets 2 kites more. How many kites does Ishaan have now?
  27. 27.6 + 3 + 7 =
  28. 28.1 + 4 + 2 =
  29. 29.There are 3 green balloons and 10 pink balloons. How many balloons are there in all?
  30. 30.5 + 1 + 3 =
  31. 31.Aarav has 5 crayons and gets 9 crayons more. How many crayons does Aarav have now?
  32. 32.1 + 2 + 1 =
  33. 33.There are 4 red balloons and 5 pink balloons. How many balloons are there in all?
  34. 34.Saanvi has 4 flowers and gets 3 flowers more. How many flowers does Saanvi have now?
  35. 35.There are 9 green flowers and 8 white flowers. How many flowers are there in all?
  36. 36.Ishaan has 6 pencils and gets 10 pencils more. How many pencils does Ishaan have now?
  37. 37.? + 3 = 11
  38. 38.13 + 1 =
  39. 39.? + 1 = 16
  40. 40.Nisha has 6 balls and gets 3 balls more. How many balls does Nisha have now?

Answer key

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

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