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S4 ICT: Python Programming Basics (Paper 3 (challenge))
S4 ICT: Python Programming Basics (Paper 3 (challenge))
Paper 3 (challenge): ten Python programming questions with answers and one-line notes.
01 Paper details (check answers afterwards)
| Item | Detail |
|---|---|
| Questions | 10 |
| Suggested time | 20 |
| Difficulty mix | Foundation 3 · Intermediate 3 · Challenge 3 · Error redo 1 |
| Chapter | Chapter: S4 ICT: Python Programming Basics |
| Level | S4 |
02 Questions (10 items)
- FoundationHow many times does for i in range(5): run, and what values does i take?
- FoundationWhat does print(sum(range(1, 6))) output?
- FoundationUsing a for loop to add the numbers 1 to 10, what is the total?
- IntermediateWhat does print(sum(range(2, 11, 2))) output?
- IntermediateWith count = 0 and a while count < 3: loop that adds one each time, how many rounds run?
- IntermediateUsing for k in range(1, 6) to print and add 7 * k, what is the total?
- ChallengeFrom 1 to 100 the multiples of 3 add to 1683, of 5 to 1050 and of 15 to 315; what do the multiples of 3 or 5 add to?
- ChallengeWith n = 1234, extracting each digit in a while loop, what are the digit sum and digit product?
- ChallengeWith 1000 saved and multiplied by 1.05 each year, how many years does the while loop run before the amount reaches 1500?
- Error redoWith i = 0 and a while i < 3: loop that only prints i and forgets to add one, what happens?
03 Answers and one-line notes
| # | Answer | One-line note |
|---|---|---|
| 1 | Five times, with i equal to 0, 1, 2, 3 and 4 | range(5) starts at 0 and stops before 5. |
| 2 | 15 | One plus two plus three plus four plus five is fifteen. |
| 3 | 55 | Adding one through ten gives fifty-five. |
| 4 | 30 | The range starts at 2 with step 2 and gives 2, 4, 6, 8 and 10, which add to thirty. |
| 5 | Three rounds | count goes from 0 to 2 in three rounds, and at 3 the condition fails. |
| 6 | 105 | Seven, fourteen, twenty-one, twenty-eight and thirty-five add up to one hundred five. |
| 7 | 2418 | Adding the two groups counts the multiples of fifteen twice, so subtracting 315 gives 2418. |
| 8 | Sum 10, product 24 | One plus two plus three plus four is ten, and one times two times three times four is twenty-four. |
| 9 | Nine years | Multiplying by 1.05 nine times is the first time the amount passes fifteen hundred, and after eight years it is still short. |
| 10 | An infinite loop that keeps printing 0 | i stays zero so the condition never fails, and i += 1 inside the block is required. |
04 What to do after marking
- After marking, redo only the wrong items and write down which step went wrong (formula, unit, or misread number).
- Repeat the same item two days later; move to the next paper only when both attempts are correct.
- Parents only need the answer and note columns; there is no need to explain every item.
When code fails, read the error message for three things: the line, the error type and the value that was not what you expected. Strings and numbers do not add, input always arrives as a string, so convert the type before calculating; indexes start at 0, so a list of length 3 ends at index 2; indentation is program structure, not decoration. For counting tasks, write the range start, stop and step before calculating.Tutor Registration →
Questions and answers are written originally by the TutorZone team and are not taken from any school, publisher or examination authority paper. Every value is checked by computer.
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