Parameters, which are input values, can be defined in a procedure. Arguments are values inputted into a procedure call. Values can be returned from a function.
Pseudocode Reference
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PROCEDURE procedureName(parameter1, ...) {}Define a procedure
procedureCall(argument1, ...)Call a procedure
RETURN(expression)Return a value from inside a procedure
Premade Pseudocode Procedures
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DISPLAY(expression)Accept a value from the user and returns the value
INPUT()Display a value to the user
Practice problems can be found in this Khan Academy link.