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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 872 · 40 questions
TalentJR

Remember (First, next, last): An algorithm = clear steps in the right order; a program = an algorithm written for a computer. To order steps, ask: what must happen before this step can happen? A mistake is a bug; finding and fixing it is debugging.

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  1. 1.🔢 To wash your hands, what comes right after “rub them with soap”? (a) dry them with a towel (b) rinse off the soap (c) wet your hands
  2. 2.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) brush all your teeth (b) rinse your mouth (c) put on toothpaste
  3. 3.🔢 To brush your teeth, which do we do first: “brush all your teeth” or “put on toothpaste”? (a) put on toothpaste (b) brush all your teeth
  4. 4.🔢 To brush your teeth, what comes right after “brush all your teeth”? (a) put on toothpaste (b) wet the toothbrush (c) rinse your mouth
  5. 5.🔢 To plant a seed, which is the LAST step? (a) cover it with soil (b) put the seed in (c) water it (d) dig a small hole
  6. 6.🗺️ Which of these is an algorithm in everyday life? (a) a pebble (b) a rainbow (c) a recipe (d) a cloud
  7. 7.🔢 To read a storybook, which do we do first: “close the book” or “pick up the book”? (a) close the book (b) pick up the book
  8. 8.🔢 To plant a seed, what comes right after “put the seed in”? (a) water it (b) cover it with soil (c) dig a small hole
  9. 9.🔢 To play with a balloon, what comes right after “tie the end”? (a) play with it (b) blow air into it (c) take a balloon
  10. 10.🔢 To play with a balloon, which is the LAST step? (a) tie the end (b) blow air into it (c) play with it (d) take a balloon
  11. 11.🔢 To play with a balloon, which is the FIRST step? (a) blow air into it (b) tie the end (c) take a balloon (d) play with it
  12. 12.🔢 To play with a balloon, which do we do first: “play with it” or “take a balloon”? (a) play with it (b) take a balloon
  13. 13.🔢 To brush your teeth, which is the FIRST step? (a) rinse your mouth (b) brush all your teeth (c) put on toothpaste (d) wet the toothbrush
  14. 14.🔢 To brush your teeth, which do we do first: “rinse your mouth” or “wet the toothbrush”? (a) rinse your mouth (b) wet the toothbrush
  15. 15.🔢 To brush your teeth, which do we do first: “brush all your teeth” or “rinse your mouth”? (a) rinse your mouth (b) brush all your teeth
  16. 16.🔢 To plant a seed, which do we do first: “cover it with soil” or “dig a small hole”? (a) cover it with soil (b) dig a small hole
  17. 17.📋 What do we call the steps written in a language a computer understands? (a) a program (b) a poem (c) a password (d) a painting
  18. 18.🔢 To read a storybook, which do we do first: “read the story” or “close the book”? (a) close the book (b) read the story
  19. 19.🔢 To read a storybook, which do we do first: “close the book” or “open the first page”? (a) close the book (b) open the first page
  20. 20.🔢 To read a storybook, which is the LAST step? (a) open the first page (b) pick up the book (c) read the story (d) close the book
  21. 21.🔢 To read a storybook, what comes right after “open the first page”? (a) pick up the book (b) close the book (c) read the story
  22. 22.🔢 To plant a seed, which is the FIRST step? (a) water it (b) dig a small hole (c) put the seed in (d) cover it with soil
  23. 23.🔧 What is finding and fixing mistakes in a program called? (a) scrolling (b) printing (c) debugging (d) downloading
  24. 24.🔢 To play with a balloon, what comes right after “blow air into it”? (a) take a balloon (b) tie the end (c) play with it
  25. 25.🔢 To plant a seed, what comes right after “cover it with soil”? (a) put the seed in (b) dig a small hole (c) water it
  26. 26.🔢 To read a storybook, what comes right after “pick up the book”? (a) close the book (b) read the story (c) open the first page
  27. 27.🔢 To play with a balloon, what comes right after “take a balloon”? (a) tie the end (b) blow air into it (c) play with it
  28. 28.🔢 To wash your hands, which is the FIRST step? (a) dry them with a towel (b) rinse off the soap (c) wet your hands (d) rub them with soap
  29. 29.🐞 What do we call a mistake in a program? (a) a cell (b) a bug (c) a sprite (d) a byte
  30. 30.🔢 To wash your hands, what comes right after “rinse off the soap”? (a) rub them with soap (b) wet your hands (c) dry them with a towel
  31. 31.🔢 To wash your hands, which do we do first: “rub them with soap” or “wet your hands”? (a) wet your hands (b) rub them with soap
  32. 32.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) wet the toothbrush (b) rinse your mouth (c) brush all your teeth
  33. 33.🔢 To brush your teeth, which is the LAST step? (a) rinse your mouth (b) wet the toothbrush (c) put on toothpaste (d) brush all your teeth
  34. 34.🔢 To read a storybook, which do we do first: “read the story” or “pick up the book”? (a) pick up the book (b) read the story
  35. 35.🔢 To read a storybook, which do we do first: “read the story” or “open the first page”? (a) open the first page (b) read the story
  36. 36.🔢 To play with a balloon, which do we do first: “take a balloon” or “play with it”? (a) play with it (b) take a balloon
  37. 37.🔢 To read a storybook, which is the FIRST step? (a) open the first page (b) pick up the book (c) close the book (d) read the story
  38. 38.🔢 To wash your hands, which is the LAST step? (a) rub them with soap (b) rinse off the soap (c) wet your hands (d) dry them with a towel
  39. 39.🔢 In an algorithm, the steps must be in the right ___. (a) order (b) colour (c) font (d) size
  40. 40.🔢 To plant a seed, what comes right after “dig a small hole”? (a) water it (b) cover it with soil (c) put the seed in

Answer key

  1. rinse off the soap
  2. put on toothpaste
  3. put on toothpaste
  4. rinse your mouth
  5. water it
  6. a recipe
  7. pick up the book
  8. cover it with soil
  9. play with it
  10. play with it
  11. take a balloon
  12. take a balloon
  13. wet the toothbrush
  14. wet the toothbrush
  15. brush all your teeth
  16. dig a small hole
  17. a program
  18. read the story
  19. open the first page
  20. close the book
  21. read the story
  22. dig a small hole
  23. debugging
  24. tie the end
  25. water it
  26. open the first page
  27. blow air into it
  28. wet your hands
  29. a bug
  30. dry them with a towel
  31. wet your hands
  32. brush all your teeth
  33. rinse your mouth
  34. pick up the book
  35. open the first page
  36. take a balloon
  37. pick up the book
  38. dry them with a towel
  39. order
  40. put the seed in

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