Displaying values in an equation

Hi!

I am new at using PTC products, including PTC Mathcad.

Few hours ago, I downloaded and installed Mathcad Prime 2.0, trial version,

and of course I ended up with a problem.

In fact, maybe it isn't a problem at all.

I don't know is it possible to write and calculate the equation in the following form:

     a = 5 mm

     b = 17 mm

     c = 25 mm

d = a * b * c = 5 mm * 17 mm * 25 mm =

d=2125mm3

Basically, I just need to know is it possible to write equations in the way that you write the equation

and Mathcad inserts numbers automatically in to equation and calculates and show in the way that

is shown above this sentence.

Hope I'll find help here

Thanks in advance!!!