Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 128 · 40 questions

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.

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

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