Learning objective
Returning a value/values from a subroutine: Be able to use subroutines that return values to the calling routine. 44
Read the explanation, check the common trap, then practise with flashcards and questions.
At a glance
0
Flashcards
0
Questions
Topic
Programming
Subtopic
Returning a value/values from a subroutine
Study support
Understand this objective
Quick explanation
Returning a value/values from a subroutine: Be able to use subroutines that return values to the calling routine. 44
- This point belongs to Programming, especially Returning a value/values from a subroutine.
- You need to be able to returning a value/values from a subroutine: Be able to use subroutines that return values to the calling routine. 44.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Why it matters
This objective helps connect Returning a value/values from a subroutine to exam-style questions, flashcards, and revision notes for Programming.
Quick student answer
In Python 3, what value is stored in result after this code runs? def double(number): return number * 2 result = double(6)
Direct answer
12
Key terms
- Calling routine: The part of a program that invokes a subroutine and can receive and use the value returned by it.
- Return value: The value sent from a subroutine back to the calling routine by a return statement.
Common trap
Displaying instead of returning: Use return to send the value back to the calling routine, then assign or use the result there.
Related questions
Try this as a practice card
Question 1 of 4
Choose an answer, get feedback, then move sideways through the set.
Flashcard prompts
Flip through the key recall cards
Flashcard 1 of 4
Revision tools
Choose how to practise
Flashcards0 linked cards
Practice Questions0 linked questions
Related learning objectives
- Data types: Understand the concept of a data type. Understand and use the following appropriately: • integer • real/float • Boolean • character • string • date/time • pointer/reference • records (or equivalent) • arrays (or equivalent). Variables declared as a pointer or reference data type are used as stores for memory addresses of objects created at runtime, ie dynamically. Not all languages support explicit pointer types, but students should have an opportunity to understand this data type. Define and use user-defined data types based on language-defined (built-in) data types.
Data types
- Programming concepts: Use, understand and know how the following statement types can be combined in programs: • variable declaration • constant declaration • assignment • iteration • selection • subroutine (procedure/function). The three combining principles (sequence, iteration/repetition and selection/choice) are basic to all imperative programming languages. Use definite and indefinite iteration, including indefinite iteration with the condition(s) at the start or the end of the iterative structure. A theoretical understanding of condition(s) at either end of an iterative structure is required, regardless of whether they are supported by the language being used. Use nested selection and nested iteration structures. Use meaningful identifier names and know why it is important to use them.
Programming concepts
- Arithmetic operations in a programming language: Be familiar with and be able to use: • addition • subtraction • multiplication • real/float division • integer division, including remainders • exponentiation • rounding • truncation. 42
Arithmetic operations in a programming language
- Relational operations in a programming language: Be familiar with and be able to use: • equal to • not equal to • less than • greater than • less than or equal to • greater than or equal to.
Relational operations in a programming language
- Boolean operations in a programming language: Be familiar with and be able to use: • NOT • AND • OR • XOR.
Boolean operations in a programming language