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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 109 · 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, which is the LAST step? (a) wet your hands (b) rub them with soap (c) dry them with a towel (d) rinse off the soap
  2. 2.🐞 What do we call a mistake in a program? (a) a sprite (b) a byte (c) a cell (d) a bug
  3. 3.🔢 To brush your teeth, what comes right after “brush all your teeth”? (a) put on toothpaste (b) rinse your mouth (c) wet the toothbrush
  4. 4.🔢 In an algorithm, the steps must be in the right ___. (a) font (b) colour (c) order (d) size
  5. 5.🔢 To play with a balloon, which do we do first: “tie the end” or “play with it”? (a) tie the end (b) play with it
  6. 6.🗺️ Which of these is an algorithm in everyday life? (a) a rainbow (b) a pebble (c) a recipe (d) a cloud
  7. 7.🔢 To wash your hands, which do we do first: “rub them with soap” or “rinse off the soap”? (a) rinse off the soap (b) rub them with soap
  8. 8.🔢 To read a storybook, which is the LAST step? (a) pick up the book (b) read the story (c) open the first page (d) close the book
  9. 9.🔢 To wash your hands, what comes right after “wet your hands”? (a) rinse off the soap (b) rub them with soap (c) dry them with a towel
  10. 10.🔢 To read a storybook, what comes right after “open the first page”? (a) close the book (b) read the story (c) pick up the book
  11. 11.🔢 To read a storybook, what comes right after “read the story”? (a) close the book (b) pick up the book (c) open the first page
  12. 12.🔢 To read a storybook, which do we do first: “pick up the book” or “open the first page”? (a) open the first page (b) pick up the book
  13. 13.🔢 To play with a balloon, which do we do first: “blow air into it” or “play with it”? (a) play with it (b) blow air into it
  14. 14.🔢 To read a storybook, which do we do first: “pick up the book” or “close the book”? (a) close the book (b) pick up the book
  15. 15.🔢 To wash your hands, which is the FIRST step? (a) dry them with a towel (b) rub them with soap (c) wet your hands (d) rinse off the soap
  16. 16.🔢 To wash your hands, which do we do first: “dry them with a towel” or “wet your hands”? (a) dry them with a towel (b) wet your hands
  17. 17.🔢 To play with a balloon, what comes right after “take a balloon”? (a) blow air into it (b) play with it (c) tie the end
  18. 18.🔢 To wash your hands, which do we do first: “rinse off the soap” or “dry them with a towel”? (a) dry them with a towel (b) rinse off the soap
  19. 19.🔢 To plant a seed, which is the FIRST step? (a) water it (b) put the seed in (c) cover it with soil (d) dig a small hole
  20. 20.🔢 To plant a seed, which do we do first: “put the seed in” or “dig a small hole”? (a) dig a small hole (b) put the seed in
  21. 21.🔢 To plant a seed, which do we do first: “cover it with soil” or “put the seed in”? (a) put the seed in (b) cover it with soil
  22. 22.🔢 To plant a seed, which is the LAST step? (a) put the seed in (b) dig a small hole (c) cover it with soil (d) water it
  23. 23.🔢 To read a storybook, what comes right after “pick up the book”? (a) open the first page (b) close the book (c) read the story
  24. 24.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) wet the toothbrush (b) brush all your teeth (c) rinse your mouth
  25. 25.🔢 To read a storybook, which do we do first: “read the story” or “pick up the book”? (a) read the story (b) pick up the book
  26. 26.📋 What do we call the steps written in a language a computer understands? (a) a password (b) a program (c) a poem (d) a painting
  27. 27.🔢 To plant a seed, which do we do first: “dig a small hole” or “cover it with soil”? (a) cover it with soil (b) dig a small hole
  28. 28.🔢 To read a storybook, which do we do first: “pick up the book” or “read the story”? (a) read the story (b) pick up the book
  29. 29.🔢 To play with a balloon, which is the FIRST step? (a) blow air into it (b) take a balloon (c) tie the end (d) play with it
  30. 30.🔢 To brush your teeth, which do we do first: “rinse your mouth” or “wet the toothbrush”? (a) rinse your mouth (b) wet the toothbrush
  31. 31.📝 What do we call a list of steps to solve a problem? (a) an algorithm (b) a mouse (c) a pixel (d) a folder
  32. 32.🔢 To brush your teeth, which is the LAST step? (a) rinse your mouth (b) brush all your teeth (c) put on toothpaste (d) wet the toothbrush
  33. 33.🔢 To play with a balloon, what comes right after “blow air into it”? (a) take a balloon (b) play with it (c) tie the end
  34. 34.🔢 To play with a balloon, which is the LAST step? (a) play with it (b) blow air into it (c) take a balloon (d) tie the end
  35. 35.🔢 To play with a balloon, which do we do first: “take a balloon” or “play with it”? (a) take a balloon (b) play with it
  36. 36.🔢 To wash your hands, what comes right after “rub them with soap”? (a) wet your hands (b) dry them with a towel (c) rinse off the soap
  37. 37.🔢 To brush your teeth, which is the FIRST step? (a) put on toothpaste (b) wet the toothbrush (c) rinse your mouth (d) brush all your teeth
  38. 38.🔢 To wash your hands, which do we do first: “dry them with a towel” or “rinse off the soap”? (a) rinse off the soap (b) dry them with a towel
  39. 39.🔢 To play with a balloon, which do we do first: “take a balloon” or “tie the end”? (a) take a balloon (b) tie the end
  40. 40.🔢 To plant a seed, which do we do first: “cover it with soil” or “dig a small hole”? (a) dig a small hole (b) cover it with soil

Answer key

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

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