STEP 2: Now that we ask for input before the functions, we can delete those lines from within the functions.

• Within each function, delete the lines that .ask() for num_1 and num_2.
• Add num_1, num_2 within each function definition, for example, def add(num_1, num_2):
• Add num_1, num_2 as arguments within each function CALL, for example, add(num_1, num_2)

We are now asking for the numbers once, then passing them to the functions! We've refactored this program!

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