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Writing and amending algorithms past paper questions

O Level Computer Science 2210 · Algorithm design and problem-solving. Write and amend algorithms for given problems or scenarios, using: pseudocode, program code and flowcharts Writing algorithms in pseudocode, program code and flowcharts.

In Cambridge O Level Computer Science 2210, Writing and amending algorithms came up in 12 of the 34 papers on Paperstreak, for about 17 marks a paper when it does. It last came up in October/November 2025.

Often set with Finding and correcting errors, Explaining the purpose of an algorithm, Validation and verification.

18 questions, newest first

1. 2210/22/O/N/25 Question 2 parts (b(i)) (c(ii)) · 6 marks
2. 2210/22/O/N/25 Question 8 · 15 marks
3. 2210/23/O/N/25 Question 4 part (a) · 4 marks
4. 2210/23/O/N/25 Question 10 · 15 marks
5. 2210/21/M/J/25 Question 4 part (a) · 5 marks
6. 2210/21/M/J/25 Question 11 · 15 marks
7. 2210/22/M/J/25 Question 7 part (a) · 6 marks
8. 2210/22/O/N/24 Question 3 part (b) · 6 marks
9. 2210/22/O/N/24 Question 12 · 15 marks
10. 2210/23/O/N/24 Question 12 · 15 marks
11. 2210/21/M/J/24 Question 10 · 15 marks
12. 2210/22/M/J/24 Question 11 · 15 marks
13. 2210/22/O/N/23 Question 11 · 15 marks
14. 2210/23/O/N/23 Question 5 part (b) · 6 marks
15. 2210/23/O/N/23 Question 8 part (b) · 3 marks
16. 2210/23/O/N/23 Question 10 · 15 marks
17. 2210/21/M/J/23 Question 11 · 15 marks
18. 2210/22/M/J/23 Question 12 · 15 marks

More in Algorithm design and problem-solving: Development life cycle and decomposition, Explaining the purpose of an algorithm, Standard methods (searching, sorting, totalling, counting), Validation and verification, Test data and trace tables, Finding and correcting errors.

Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.