assignment 2 is confusing

it says here
// In this exercise, you will be given two variables, they will be called: num1 and num2
// On the next line create a variable called 'difference' and using math operators return num2 subrtracted from num1
const difference = num1 - num2;
do_math(num1, num2);
return difference;
}
i am just not getting this whole excercise. tbh the video wasnt explaining that much either. im feeling awful confused

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First of all you are missing the start of the function, with the name and the parameters. You can't do anything without that.
Second of all, if you have a `do_math()` function, you do not need it. If you don't have it, you can;t use it. Delete that line.

Your final answer should look like this:

``````function exerciseTwo(num1, num2) {
var difference = num1 - num2;
return difference;
}``````

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I don't know how your teacher grades your answers, but wouldn't it be simpler if you did this?

``````function exerciseTwo(num1, num2) {
return num1 - num2;
}``````