Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 149 · 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 wash your hands, which is the FIRST step? (a) wet your hands (b) rub them with soap (c) rinse off the soap (d) dry them with a towel
2. 2.🔢 To play with a balloon, what comes right after “tie the end”? (a) take a balloon (b) play with it (c) blow air into it
3. 3.🔢 To plant a seed, which do we do first: “water it” or “dig a small hole”? (a) dig a small hole (b) water it
4. 4.🔢 To read a storybook, what comes right after “pick up the book”? (a) read the story (b) close the book (c) open the first page
5. 5.🔢 To play with a balloon, which do we do first: “take a balloon” or “tie the end”? (a) tie the end (b) take a balloon
6. 6.🤖 A computer follows the steps of a program ___. (a) the way it likes (b) only on Sundays (c) exactly as written (d) backwards always
7. 7.🐞 What do we call a mistake in a program? (a) a bug (b) a sprite (c) a byte (d) a cell
8. 8.🔢 To play with a balloon, which do we do first: “tie the end” or “take a balloon”? (a) take a balloon (b) tie the end
9. 9.🔢 To read a storybook, what comes right after “read the story”? (a) open the first page (b) pick up the book (c) close the book
10. 10.🔢 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
11. 11.🔢 To wash your hands, what comes right after “rub them with soap”? (a) wet your hands (b) rinse off the soap (c) dry them with a towel
12. 12.🔢 To play with a balloon, which do we do first: “tie the end” or “blow air into it”? (a) blow air into it (b) tie the end
13. 13.🔢 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
14. 14.🔢 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
15. 15.🔢 To plant a seed, which do we do first: “cover it with soil” or “water it”? (a) cover it with soil (b) water it
16. 16.🔢 In an algorithm, the steps must be in the right ___. (a) colour (b) size (c) order (d) font
17. 17.🔢 To read a storybook, which is the LAST step? (a) pick up the book (b) close the book (c) open the first page (d) read the story
18. 18.🔢 To wash your hands, what comes right after “wet your hands”? (a) dry them with a towel (b) rinse off the soap (c) rub them with soap
19. 19.🔢 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
20. 20.🔢 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
21. 21.🔢 To brush your teeth, which do we do first: “wet the toothbrush” or “rinse your mouth”? (a) wet the toothbrush (b) rinse your mouth
22. 22.🔢 To play with a balloon, which do we do first: “play with it” or “blow air into it”? (a) play with it (b) blow air into it
23. 23.🔢 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
24. 24.🔢 To brush your teeth, which is the LAST step? (a) wet the toothbrush (b) brush all your teeth (c) rinse your mouth (d) put on toothpaste
25. 25.🔢 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
26. 26.🗺️ Which of these is an algorithm in everyday life? (a) a recipe (b) a rainbow (c) a pebble (d) a cloud
27. 27.🔢 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
28. 28.🔢 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
29. 29.📋 What do we call the steps written in a language a computer understands? (a) a painting (b) a poem (c) a password (d) a program
30. 30.🔢 To read a storybook, which is the FIRST step? (a) pick up the book (b) open the first page (c) read the story (d) close the book
31. 31.🔢 To plant a seed, which is the FIRST step? (a) water it (b) cover it with soil (c) dig a small hole (d) put the seed in
32. 32.🔢 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
33. 33.🔢 To plant a seed, which do we do first: “water it” or “put the seed in”? (a) water it (b) put the seed in
34. 34.🔢 To play with a balloon, which is the LAST step? (a) take a balloon (b) blow air into it (c) tie the end (d) play with it
35. 35.🔢 To wash your hands, which do we do first: “wet your hands” or “rinse off the soap”? (a) rinse off the soap (b) wet your hands
36. 36.🔢 To wash your hands, what comes right after “rinse off the soap”? (a) dry them with a towel (b) rub them with soap (c) wet your hands
37. 37.🔢 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
38. 38.🔢 To brush your teeth, what comes right after “brush all your teeth”? (a) rinse your mouth (b) put on toothpaste (c) wet the toothbrush
39. 39.🔢 To plant a seed, what comes right after “dig a small hole”? (a) put the seed in (b) water it (c) cover it with soil
40. 40.🔢 To plant a seed, which do we do first: “dig a small hole” or “cover it with soil”? (a) dig a small hole (b) cover it with soil

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