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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 126 · 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.Joseph has 7 balloons and gets 4 balloons more. How many balloons does Joseph have now?
  2. 2.Arjun has 7 mangoes and gets 12 mangoes more. How many mangoes does Arjun have now?
  3. 3.? + 8 = 9
  4. 4.Diya has 4 books and gets 16 books more. How many books does Diya have now?
  5. 5.8 + 12 =
  6. 6.Priya has 9 balls and gets 6 balls more. How many balls does Priya have now?
  7. 7.19 + 1 =
  8. 8.There are 6 red flowers and 6 blue flowers. How many flowers are there in all?
  9. 9.? + 3 = 5
  10. 10.2 + 3 + 8 =
  11. 11.Vivaan has 2 balloons and gets 1 balloon more. How many balloons does Vivaan have now?
  12. 12.? + 10 = 17
  13. 13.5 + 7 =
  14. 14.10 + 10 =
  15. 15.There are 3 white balloons and 6 green balloons. How many balloons are there in all?
  16. 16.15 + ? = 19
  17. 17.There are 7 yellow flowers and 10 pink flowers. How many flowers are there in all?
  18. 18.3 + 2 + 2 =
  19. 19.6 + 5 + 2 =
  20. 20.3 + 8 + 9 =
  21. 21.7 + 3 + 7 =
  22. 22.7 + 6 + 4 =
  23. 23.14 + 6 =
  24. 24.Farhan has 5 marbles and gets 2 marbles more. How many marbles does Farhan have now?
  25. 25.5 + 1 =
  26. 26.Ananya has 6 bananas and gets 5 bananas more. How many bananas does Ananya have now?
  27. 27.Riya has 15 bananas and gets 5 bananas more. How many bananas does Riya have now?
  28. 28.Rahul has 3 mangoes and gets 13 mangoes more. How many mangoes does Rahul have now?
  29. 29.6 + 8 + 1 =
  30. 30.8 + 1 + 1 =
  31. 31.3 + 6 + 9 =
  32. 32.Ananya has 4 bananas and gets 6 bananas more. How many bananas does Ananya have now?
  33. 33.There are 2 yellow kites and 18 white kites. How many kites are there in all?
  34. 34.15 + ? = 17
  35. 35.8 + 5 + 5 =
  36. 36.1 + 4 + 11 =
  37. 37.2 + 5 + 12 =
  38. 38.Lakshmi has 9 laddoos and gets 3 laddoos more. How many laddoos does Lakshmi have now?
  39. 39.There are 2 white crayons and 11 red crayons. How many crayons are there in all?
  40. 40.Rahul has 8 books and gets 8 books more. How many books does Rahul have now?

Answer key

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

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