Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 224 · 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 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
2. 2.🔢 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
3. 3.🔢 To play with a balloon, which is the FIRST step? (a) play with it (b) blow air into it (c) tie the end (d) take a balloon
4. 4.🔢 To wash your hands, which is the LAST step? (a) wet your hands (b) rub them with soap (c) rinse off the soap (d) dry them with a towel
5. 5.🔢 To wash your hands, what comes right after “wet your hands”? (a) rinse off the soap (b) dry them with a towel (c) rub them with soap
6. 6.🔢 To plant a seed, which do we do first: “water it” or “dig a small hole”? (a) dig a small hole (b) water it
7. 7.🔢 To wash your hands, what comes right after “rub them with soap”? (a) rinse off the soap (b) dry them with a towel (c) wet your hands
8. 8.🔢 To play with a balloon, which is the LAST step? (a) blow air into it (b) tie the end (c) play with it (d) take a balloon
9. 9.🔢 To plant a seed, what comes right after “put the seed in”? (a) cover it with soil (b) water it (c) dig a small hole
10. 10.🔢 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
11. 11.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) brush all your teeth (b) put on toothpaste (c) rinse your mouth
12. 12.🔢 To brush your teeth, which is the FIRST step? (a) brush all your teeth (b) rinse your mouth (c) wet the toothbrush (d) put on toothpaste
13. 13.🐞 What do we call a mistake in a program? (a) a byte (b) a cell (c) a sprite (d) a bug
14. 14.🗺️ Which of these is an algorithm in everyday life? (a) a rainbow (b) a recipe (c) a pebble (d) a cloud
15. 15.🔢 To read a storybook, which do we do first: “pick up the book” or “open the first page”? (a) pick up the book (b) open the first page
16. 16.🔢 To wash your hands, which do we do first: “rub them with soap” or “rinse off the soap”? (a) rub them with soap (b) rinse off the soap
17. 17.🔢 To brush your teeth, which do we do first: “rinse your mouth” or “wet the toothbrush”? (a) rinse your mouth (b) wet the toothbrush
18. 18.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) rinse your mouth (b) wet the toothbrush (c) brush all your teeth
19. 19.🔢 To brush your teeth, which do we do first: “wet the toothbrush” or “put on toothpaste”? (a) wet the toothbrush (b) put on toothpaste
20. 20.🔢 To read a storybook, which is the FIRST step? (a) open the first page (b) read the story (c) pick up the book (d) close the book
21. 21.🔢 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
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.🔢 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
24. 24.🔢 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
25. 25.🔢 To play with a balloon, what comes right after “blow air into it”? (a) play with it (b) tie the end (c) take a balloon
26. 26.🔢 To plant a seed, which do we do first: “water it” or “cover it with soil”? (a) water it (b) cover it with soil
27. 27.🔢 To play with a balloon, what comes right after “take a balloon”? (a) tie the end (b) play with it (c) blow air into it
28. 28.📝 What do we call a list of steps to solve a problem? (a) a folder (b) a mouse (c) a pixel (d) an algorithm
29. 29.🔢 To brush your teeth, which is the LAST step? (a) wet the toothbrush (b) put on toothpaste (c) brush all your teeth (d) rinse your mouth
30. 30.🔢 To read a storybook, what comes right after “open the first page”? (a) read the story (b) pick up the book (c) close the book
31. 31.🔢 To plant a seed, which do we do first: “dig a small hole” or “water it”? (a) dig a small hole (b) water it
32. 32.🔢 To plant a seed, which is the LAST step? (a) dig a small hole (b) water it (c) put the seed in (d) cover it with soil
33. 33.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “wet the toothbrush”? (a) put on toothpaste (b) wet the toothbrush
34. 34.🔢 To wash your hands, what comes right after “rinse off the soap”? (a) rub them with soap (b) dry them with a towel (c) wet your hands
35. 35.🔧 What is finding and fixing mistakes in a program called? (a) scrolling (b) downloading (c) debugging (d) printing
36. 36.🔢 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
37. 37.🔢 In an algorithm, the steps must be in the right ___. (a) size (b) order (c) font (d) colour
38. 38.🔢 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
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 do we call the steps written in a language a computer understands? (a) a poem (b) a program (c) a painting (d) a password

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