Coding For Teachers

Variables: List

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In this section we explain the variable type “list” and show you examples of how to use it. It would be unsustainable to have a variable for every piece of data. A list allows for one variable to point to various pieces of data. It's possible to choose a piece of data you want by pointing the code to a value on a list.

Multiplication in a loop

Create a list called numbers containing a few integers (e.g., [1, 2, 3, 4, 5]). Implement a for loop to do the following: a. Multiply each number in the list by 2. b. Print the result of each multiplication.

Solution

 # Create the list of numbers
numbers = [1, 2, 3, 4, 5]

# Multiply each number in the list by 2 and print the result
for num in numbers:
    result = num * 2
    print(result)