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Grade 10 Computing Challenge Puzzles Worksheet with Answers
Grade 10 (US) · Year 11 (UK) · Class 10 (India) · Computer Science
Unit 5: Going FurtherChallenge PuzzlesChallenge
Puzzles that stretch computational thinking: bit patterns, logic and clever counting. This free high school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.
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Practice Sheetaethelsystems.comComputing Challenge Puzzles
Grade 10 · Computer Science
Name
Class
Date
Learning goal: Challenge Puzzles
Directions: Read each question carefully and write your answer on the line. Use the diagram to help you.
RememberBinary place values
- 1
How many different patterns can 4 bits make?
- 2
In a list of every 3-bit pattern, how many patterns have exactly one 1?
- 3
A playlist app lets you switch each of 4 songs on or off. How many different playlists (including the empty one) are possible?
- 4
How many different patterns can 3 bits make?
- 5
A playlist app lets you switch each of 5 songs on or off. How many different playlists (including the empty one) are possible?
- 6
How many different patterns can 8 bits make?
- 7
What is the largest whole number you can store in 7 bits?
- 8
A playlist app lets you switch each of 3 songs on or off. How many different playlists (including the empty one) are possible?
- 9
5 computers each connect directly to every other computer with one cable. How many cables are needed?
- 10
4 computers each connect directly to every other computer with one cable. How many cables are needed?
- 11
How many different patterns can 7 bits make?
- 12
10 computers each connect directly to every other computer with one cable. How many cables are needed?
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Free printable worksheets with answer keys · aethelsystems.com/worksheets/computer/10/challenge_cs
Answer key — Computing Challenge Puzzles (Grade 10)
- 1.16
- 2.3
- 3.16
- 4.8
- 5.32
- 6.256
- 7.127
- 8.8
- 9.10
- 10.6
- 11.128
- 12.45
Answer key (click to show)
- 1.16
- 2.3
- 3.16
- 4.8
- 5.32
- 6.256
- 7.127
- 8.8
- 9.10
- 10.6
- 11.128
- 12.45
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