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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 774 · 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. 1.1 + 6 + 4 =
  2. 2.5 + ? = 14
  3. 3.1 + 2 + 12 =
  4. 4.Saanvi has 3 books and gets 6 books more. How many books does Saanvi have now?
  5. 5.4 + 1 + 6 =
  6. 6.Diya has 10 mangoes and gets 4 mangoes more. How many mangoes does Diya have now?
  7. 7.Ananya has 11 balloons and gets 9 balloons more. How many balloons does Ananya have now?
  8. 8.3 + ? = 4
  9. 9.2 + 8 =
  10. 10.There are 9 white flowers and 6 red flowers. How many flowers are there in all?
  11. 11.? + 4 = 6
  12. 12.Aditya has 5 laddoos and gets 13 laddoos more. How many laddoos does Aditya have now?
  13. 13.11 + 6 =
  14. 14.5 + ? = 7
  15. 15.Ishaan has 5 mangoes and gets 7 mangoes more. How many mangoes does Ishaan have now?
  16. 16.There are 8 green beads and 5 yellow beads. How many beads are there in all?
  17. 17.There are 7 green crayons and 2 red crayons. How many crayons are there in all?
  18. 18.8 + 7 + 3 =
  19. 19.14 + 1 =
  20. 20.15 + ? = 17
  21. 21.There are 2 blue flowers and 2 white flowers. How many flowers are there in all?
  22. 22.5 + ? = 10
  23. 23.10 + 7 =
  24. 24.There are 9 red balloons and 5 blue balloons. How many balloons are there in all?
  25. 25.15 + 4 =
  26. 26.Rohan has 8 kites and gets 8 kites more. How many kites does Rohan have now?
  27. 27.6 + 3 + 2 =
  28. 28.12 + 3 =
  29. 29.16 + 4 =
  30. 30.Riya has 3 marbles and gets 17 marbles more. How many marbles does Riya have now?
  31. 31.8 + 7 + 2 =
  32. 32.3 + 8 =
  33. 33.5 + 7 =
  34. 34.19 + 1 =
  35. 35.There are 12 blue balloons and 8 red balloons. How many balloons are there in all?
  36. 36.3 + 3 + 7 =
  37. 37.Ishaan has 7 books and gets 11 books more. How many books does Ishaan have now?
  38. 38.There are 8 white beads and 9 red beads. How many beads are there in all?
  39. 39.9 + 3 =
  40. 40.Gurpreet has 15 bananas and gets 2 bananas more. How many bananas does Gurpreet have now?

Answer key

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

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