Numeric Value of an Expression From Calculator into Note

I want the content of the note to show the numeric value of x_10 from the calculator (if I can do that directly, that would be best!!), but I can only get it to show 0

Here is a simplified version of my activity:

I think it’s multiplying x1 by 0. When your subscript is more than one character you have to use curly braces:


That worked perfectly! Thank you so much!